Patriots coach says he doesn't know how balls were deflated

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Deflategate scandal - Tom Brady - Bill Belichick - Patriots - Football - NFL
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Patriots coach says he doesn't know how balls were deflated
NEW YORK, NY - AUGUST 31: Quarterback Tom Brady of the New England Patriots leaves federal court after contesting his four game suspension with the NFL on August 31, 2015 in New York City. U.S. District Judge Richard Berman had required NFL commissioner Roger Goodell and Brady to be present in court when the NFL and NFL Players Association reconvened their dispute over Brady's four-game Deflategate suspension. The two sides failed to reach an agreement to their seven-month standoff. (Photo by Spencer Platt/Getty Images)
New England Patriots quarterback Tom Brady leaves Federal court, in New York, Monday, Aug. 31, 2015. Last-minute settlement talks between lawyers for NFL Commissioner Roger Goodell and New England Patriots quarterback Tom Brady have failed, leaving a judge to decide the fate of "Deflategate." (AP Photo/Richard Drew)
This image of the first page of a court document released by the U.S. District Court Thursday, Sept. 3, 2015, shows Judge Richard M. Berman's decision to overturn NFL Commissioner Roger Goodell's four-game suspension of New England quarterback Tom Brady. (U.S. District Court of New York via AP)
This image of a portion of the last page of a court document released by the U.S. District Court Thursday, Sept. 3, 2015, shows Judge Richard M. Berman's decision to overturn NFL Commissioner Roger Goodell's four-game suspension of New England quarterback Tom Brady. (U.S. District Court of New York via AP)
FILE - In this April 31, 2015, file photo, New England Patriots quarterback Tom Brady leaves Federal court in New York. Brady can suit up for his team's season opener after a judge erased his four-game suspension for "Deflategate." (AP Photo/Richard Drew, File)
NEW ORLEANS, LA - AUGUST 22: Tom Brady #12 of the New England Patriots participates in warmups prior to a preseason game against the New Orleans Saints at the Mercedes-Benz Superdome on August 22, 2015 in New Orleans, Louisiana. (Photo by Stacy Revere/Getty Images)
NEW YORK, NY - AUGUST 12: New England Patriots quarterback Tom Brady leaves federal court after appealing the National Football League's (NFL) decision to suspend him for four games of the 2015 season on August 12, 2015 in New York City. The NFL alleges that Brady knew footballs used in one of last season's games was deflated below league standards, making it easier to handle. (Photo by Andrew Burton/Getty Images)
NFL Commissioner Roger Goodell leaves the Federal District Courthouse August 12, 2015 in New York. Brady and NFL. Goodell and New England Patriots quarterback Tom Brady met with Judge Richard M. Berman who questioned both sides about Bradys four-game suspension for his role in the 'deflate-gate' scandal after the NFL decided Brady was aware that the balls were deflated in the first half of the Super Bowl final in January 2015. AFP PHOTO / DON EMMERT (Photo credit should read DON EMMERT/AFP/Getty Images)
CHARLOTTE, NC - AUGUST 28: A fan taunts Tom Brady #12 of the New England Patriots as he takes the field during their preseason NFL game against the Carolina Panthers at Bank of America Stadium on August 28, 2015 in Charlotte, North Carolina. (Photo by Grant Halverson/Getty Images)
NEW YORK, NY - AUGUST 12: New England Patriots' quarterback Tom Brady arrives at federal court to appeal the National Football League's (NFL) decision to suspend him for four games of the 2015 season on August 12, 2015 in New York City. The NFL alleges that Brady knew footballs used in one of last season's games was deflated below league standards, making it easier to handle. (Photo by Andrew Burton/Getty Images)
FOXBORO, MA - AUGUST 13: A fan holds a 'Free Brady' sign in the crowd referencing Tom Brady #12 of the New England Patriots during a preseason game against the Green Bay Packers at Gillette Stadium on August 13, 2015 in Foxboro, Massachusetts. (Photo by Maddie Meyer/Getty Images)
A group of people wearing 'Deflategate' hats wait outside federal court during a conference meeting between New England Patriots quarterback Tom Brady, NFL Commissioner Roger Goodell and U.S. District Judge Richard Berman in New York, U.S., on Wednesday, Aug. 12, 2015. Berman seems intent on getting a settlement of a dispute over Brady's four-game suspension for his role in using underinflated game balls -- in what's come to be known as Deflategate. Photographer: Michael Nagle/Bloomberg via Getty Images
NEW YORK, NY - AUGUST 12: New England Patriots' quarterback Tom Brady arrives at federal court to appeal the National Football League's (NFL) decision to suspend him for four games of the 2015 season on August 12, 2015 in New York City. The NFL alleges that Brady knew footballs used in one of last season's games was deflated below league standards, making it easier to handle. (Photo by Andrew Burton/Getty Images)
FILE - In this June 23, 2015, file photo, New England Patriot's quarterback Tom Brady arrives for his appeal hearing at NFL headquarters in New York. The NFL Players Union has sued to get a judge to void NFL Commissioner Roger Goodell's four-game suspension of Brady in the "Deflategate" scandal, setting the stage for the spectacle of the pair having to appear on Wednesday Aug. 12, 2015, in the same New York courtroom. (AP Photo/Mark Lennihan, File)
NFL Commissioner Roger Goodell arrives at federal court, Wednesday, Aug. 12, 2015, in New York. New England Patriots quarterback Tom Brady and Goodell are set to explain to a judge why a controversy over underinflated footballs at last season's AFC conference championship game is spilling into a new season.(AP Photo/Mary Altaffer)
New England Patriots quarterback Tom Brady wipes the sweat from his head during an NFL football training camp in Foxborough, Mass., Thursday, July 30, 2015. (AP Photo/Charles Krupa)
FOXBORO, MA - MAY 24: Ryan Desilets and Jon Harmon both from Milford, Massachusetts, show support for New England Patriots quarterback Tom Brady at the 'Free Tom Brady' rally at Gillette Stadium on May 24, 2015 in Foxboro, Massachusetts. The rally was held in protest of Brady's four game suspension for his role in the 'deflategate' scandal. (Photo by Maddie Meyer/Getty Images)
New England Patriots quarterback Tom Brady gestures during an event at Salem State University in Salem, Mass., Thursday, May 7, 2015. An NFL investigation has found that New England Patriots employees likely deflated footballs and that quarterback Tom Brady was "at least generally aware" of the rules violations. The 243-page report released Wednesday, May 6, 2015, said league investigators found no evidence that coach Bill Belichick and team management knew of the practice. (AP Photo/Charles Krupa, Pool)
FOXBOROUGH, MA - JANUARY 22: Patriots quarterback Tom Brady speaks to the media at a press conference at Gillette Stadium about the under-inflated footballs used in the AFC Championship Game. (Photo by John Tlumacki/The Boston Globe via Getty Images)
PHOENIX - JANUARY 27: The annual 'Media Day' for the Super Bowl was held at the US Airways Arena in downtown Phoenix. Players and coaches from first the New England Patriots, then the Seattle Seahawks, spent over an hour taking questions from the media. Patriots head coach Bill Belichick looked unusually upbeat as he listened to a question. (Photo by Jim Davis/The Boston Globe via Getty Images)
Baden Sports researcher director Hugh Tompkins shows an air pressure gauge reading for a football used in a demonstration in Renton, Wash., Thursday, Jan. 22, 2015. Former NFL quarterback Hugh Millen, who now helps design footballs for Baden, says quarterbacks prefer footballs with less air because of better grip and faster throws. (AP Photos/Manuel Valdes)
Behind the scenes: Making the Super Bowl XLIX footballs! #SB49 đź“·: Rick Osentoski/AP
Making of the @SuperBowl XLIX footballs [PHOTOS]: http://t.co/qayPQfqt0A #SB49 http://t.co/0dQRKYgClH
New England Patriots football head coach Bill Belichick speaks during an NFL football news conference at Gillette Stadium, Saturday, Jan. 24, 2015, in Foxborough, Mass., where he defended the way his team preps its game balls. (AP Photo/Steven Senne)
FOXBOROUGH, MA - JANUARY 22: Patriots quarterback Tom Brady speaks to the media at a press conference at Gillette Stadium about the under-inflated footballs used in the AFC Championship Game. (Photo by John Tlumacki/The Boston Globe via Getty Images)
Former NFL quarterback Hugh Millen throws a football at Baden Sports headquarters in Renton, Wash., Thursday, Jan. 22, 2015. Millen says many quarterbacks prefer footballs with less air because of better grip and faster throws. (AP Photos/Manuel Valdes)
Baden Sports researcher director Hugh Tompkins shows footballs with different air pressures to be used in a demonstration, in Renton, Wash., Thursday, Jan. 22, 2015. Former NFL quarterback Hugh Millen, who now helps design footballs for Baden, says quarterbacks prefer footballs with less air because of better grip and faster throws. (AP Photos/Manuel Valdes)
FILE - In this photo taken Sunday, Jan. 18, 2015, New England Patriots quarterback Tom Brady throws a pass during the first half of the AFC championship NFL football game against the Indianapolis Colts in Foxborough, Mass. The NFL said Friday, Jan. 3, 2015, that evidence shows the Patriots used underinflated footballs during the first half of the AFC championship game. The investigation is still ongoing they added, and with no conclusions and no timetable for resolving the cheating accusations with the Super Bowl nine days away. (AP Photo/Charles Krupa, File)
New England Patriots quarterback Tom Brady faces members of the media at a news conference in Foxborough, Mass., Thursday, Jan. 22, 2015. Brady said Thursday that he did not know how New England ended up using underinflated balls in its win Sunday against the Indianapolis Colts in the AFC Championship game. (AP Photo/Elise Amendola)
New England Patriots quarterback Tom Brady, second from left, steps into a news conference in Foxborough, Mass., Thursday, Jan. 22, 2015. Brady said Thursday that he did not know how New England ended up using underinflated balls in its win Sunday against the Indianapolis Colts in the AFC Championship game. (AP Photo/Elise Amendola)
New England Patriots quarterback Tom Brady speaks at a news conference in Foxborough, Mass., Thursday, Jan. 22, 2015. Brady said Thursday that he did not know how New England ended up using underinflated balls in its win Sunday against the Colts in the AFC Championship game. (AP Photo/Elise Amendola)
New England Patriots quarterback Tom Brady steps away from a news conference in Foxborough, Mass., Thursday, Jan. 22, 2015. Brady said Thursday that he did not know how New England ended up using underinflated balls in its win Sunday against the Indianapolis Colts in the AFC Championship game. (AP Photo/Elise Amendola)
FOXBOROUGH, MA - JANUARY 22: New England Patriots Coach Bill Belichick speaks to the media on January 22, 2015 on issues surrounding under-inflated footballs used during the AFC Championship Game. (Photo by John Tlumacki/The Boston Globe via Getty Images)
FOXBOROUGH, MA - JANUARY 22: New England Patriots Coach Bill Belichick spoke to the media on January 22, 2015 on issues surrounding under-inflated footballs used during the AFC Championship Game. (Photo by David L. Ryan/The Boston Globe via Getty Images)
FOXBOROUGH, MA - JANUARY 22: New England Patriots Coach Bill Belichick speaks to the media on January 22, 2015 on issues surrounding under-inflated footballs used during the AFC Championship Game. (Photo by John Tlumacki/The Boston Globe via Getty Images)
New England Patriots head coach Bill Belichick reacts during a news conference prior to a team practice in Foxborough, Mass., Thursday, Jan. 22, 2015. Belichick addressed the issue of the NFL investigation of deflated footballs. (AP Photo/Elise Amendola)
New England Patriots head coach Bill Belichick, right, faces members of the media during a news conference prior to a team practice in Foxborough, Mass., Thursday, Jan. 22, 2015. (AP Photo/Elise Amendola)
New England Patriots head coach Bill Belichick speaks during a news conference prior to a team practice in Foxborough, Mass., Thursday, Jan. 22, 2015. (AP Photo/Elise Amendola)
New England Patriots head coach Bill Belichick, right, faces members of the media during a news conference prior to a team practice in Foxborough, Mass., Thursday, Jan. 22, 2015. (AP Photo/Elise Amendola)
New England Patriots head coach Bill Belichick walks from the podium after a news conference prior to a team practice in Foxborough, Mass., Thursday, Jan. 22, 2015. Belichick addressed the issue of the NFL investigation into deflated footballs. (AP Photo/Elise Amendola)
BOSTON, MA - JANUARY 26: A fan holds a sign referencing 'deflate-gate,' the under inflation of footballs used by the Patriots during the AFC Championship game, during the New England Patriots Send-Off Rally at City Hall Plaza on January 26, 2015 in Boston, Massachusetts. The Patriots will face the Seattle Seahawks in Superbowl XLIX on Sunday. (Photo by Maddie Meyer/Getty Images)
New England Patriots head coach Bill Belichick holds the championship trophy after the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. The Patriots defeated the Colts 45-7 to advance to the Super Bowl against the Seattle Seahawks. (AP Photo/Matt Slocum)
New England Patriots quarterback Tom Brady, left, speaks with Bill Belichick after the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. The Patriots defeated the Colts 45-7 to advance to the Super Bowl against the Seattle Seahawks. (AP Photo/Charles Krupa)
FOXBORO, MA - JANUARY 18: Umpire Carl Paganelli #124 holds a ball on the field after a play during the 2015 AFC Championship Game between the New England Patriots and the Indianapolis Colts at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. It was reported on January 19, 20015 that the league is looking into the apparent use of deflated footballs by the New England Patriots during their game. (Photo by Elsa/Getty Images)
In this Sunday, Jan. 18, 2015, photo New England Patriots quarterback Tom Brady has a ball tossed to him during warmups before the NFL football AFC Championship game against the Indianapolis Colts in Foxborough, Mass. The NFL says its investigation into whether the New England Patriots used underinflated footballs in the AFC championship game is ongoing after a report Tuesday night. Jan. 20, 2015, claimed the league found 11 balls were not properly inflated. (AP Photo/Matt Slocum, File)
In this Jan. 21, 2015 photo, "Deflate-gate" cookies are offered for sale at Boston Common Coffee in Boston's North End neighborhood. As the NFL investigates how footballs got deflated during the New England Patriots' AFC Championship game, and detractors accuse the team of cheating, very little air seems to have gone out of Patriots Nation and its Super Bowl euphoria. (AP Photo/Elise Amendola)
GLENDALE, AZ - FEBRUARY 01: Tom Brady #12 and Julian Edelman #11 of the New England Patriots celebrate after defeating the Seattle Seahawks 28-24 to win Super Bowl XLIX at University of Phoenix Stadium on February 1, 2015 in Glendale, Arizona. (Photo by Tom Pennington/Getty Images)
GLENDALE, AZ - FEBRUARY 01: Tom Brady #12 of the New England Patriots celebrates with the vince Lombardi Trophy after defeating the Seattle Seahawks 28-24 during Super Bowl XLIX at University of Phoenix Stadium on February 1, 2015 in Glendale, Arizona. (Photo by Tom Pennington/Getty Images)
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FOXBOROUGH, Mass. (AP) -- Patriots coach Bill Belichick said Thursday he doesn't know how footballs became deflated during the game that got his team to the Super Bowl.

But Belichick declined to answer questions Thursday after saying he knew nothing about accusations that his team cheated with underinflated footballs in its win against the Colts in the AFC championship game.

The NFL is investigating.

"I had no knowledge of this situation until Monday morning," said Belichick, who said he was "shocked" to learn the news.

"I would say I've learned a lot more about this process in the last three days than I knew or have talked about it in the last 40 years that I've coached in this league," Belichick said. "I had no knowledge of the various steps involved in the game balls and process that went through."

Inside the Patriots-Colts game:

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Patriots Colts - AFC Championship Game 01/18/2015 - football - Super Bowl 2015
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Patriots coach says he doesn't know how balls were deflated
FOXBORO, MA - JANUARY 18: Tom Brady #12 of the New England Patriots walks through the media after defeating the Indianapolis Colts in the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. The Patriots defeated the Colts 45-7. (Photo by Elsa/Getty Images)
New England Patriots quarterback Tom Brady , right, chats with Indianapolis Colts quarterback Andrew Luck after the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. The Patriots defeated the Colts 45-7 to advance to the Super Bowl. (AP Photo/Charles Krupa)
New England Patriots quarterback Tom Brady, right, speaks to Indianapolis Colts quarterback Andrew Luck after the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. The Patriots defeated the Colts 45-7 to advance to the Super Bowl against the Seattle Seahawks. (AP Photo/Matt Slocum)
FOXBORO, MA - JANUARY 18: Andrew Luck #12 of the Indianapolis Colts and head coach Bill Belichick of the New England Patriots shake hands after the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. The Patriots defeated the Colts 45-7. (Photo by Maddie Meyer/Getty Images)
FOXBORO, MA - JANUARY 18: Darrelle Revis #24 of the New England Patriots celebrates after defeating the Indianapolis Colts in the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. The Patriots defeated the Colts 45-7. (Photo by Jared Wickerham/Getty Images)
FOXBORO, MA - JANUARY 18: Head coach Chuck Pagano of the Indianapolis Colts walks off the field after being defeated by the New England Patriots in the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. The Patriots defeated the Colts 45-7. (Photo by Jared Wickerham/Getty Images)
FOXBORO, MA - JANUARY 18: Tom Brady #12 of the New England Patriots walks through the media after defeating the Indianapolis Colts in the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. The Patriots defeated the Colts 45-7. (Photo by Al Bello/Getty Images)
New England Patriots defensive end Chandler Jones (95) celebrates with teammate Devin McCourty during the second half of the NFL football AFC Championship game against the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
FOXBORO, MA - JANUARY 18: Andrew Luck #12 of the Indianapolis Colts looks on against the New England Patriots in the fourth quarter of the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Jared Wickerham/Getty Images)
New England Patriots running back LeGarrette Blount (29) runs as Indianapolis Colts cornerback Darius Butler (20) brings him down during the first half on Sunday, Jan. 18, 2015, at Gillette Stadium in Foxborough, Mass. (Brad Horrigan/Hartford Courant/TNS via Getty Images)
Indianapolis Colts wide receiver T.Y. Hilton (13) and New England Patriots free safety Devin McCourty (32) battle for the ball during the first half on Sunday, Jan. 18, 2015, at Gillette Stadium in Foxborough, Mass. (Brad Horrigan/Hartford Courant/TNS via Getty Images)
FOXBORO, MA - JANUARY 18: Darrelle Revis #24 of the New England Patriots celebrates after defeating the Indianapolis Colts in the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. The Patriots defeated the Colts 45-7. (Photo by Jared Wickerham/Getty Images)
Indianapolis Colts running back Zurlon Tipton (37) reaches for a ball as New England Patriots outside linebacker Dont'a Hightower (54) plays defense during the first half on Sunday, Jan. 18, 2015, at Gillette Stadium in Foxborough, Mass. (Brad Horrigan/Hartford Courant/TNS via Getty Images)
New England Patriots tight end Rob Gronkowski (87) battles Indianapolis Colts inside linebacker D'Qwell Jackson (52) for the ball during the first half on Sunday, Jan. 18, 2015, at Gillette Stadium in Foxborough, Mass. (John Woike/Hartford Courant/TNS via Getty Images)
FOXBOROUGH, MA - JANUARY 18: The Patriots' LeGarrette Blount scores in 3rd quarter action during the AFC Championship Game between the New England Patriots and the Indianapolis Colts at Gillette Stadium on January 18, 2015. (Photo by Matthew J. Lee/The Boston Globe via Getty Images)
New England Patriots running back LeGarrette Blount (29) runs past Indianapolis Colts strong safety Mike Adams (29) during the first half on Sunday, Jan. 18, 2015, at Gillette Stadium in Foxborough, Mass. (John Woike/Hartford Courant/TNS via Getty Images)
FOXBOROUGH, MA - JANUARY 18: The Patriots' LeGarrette Blount scores in 3rd quarter action during the AFC Championship Game between the New England Patriots and the Indianapolis Colts at Gillette Stadium on January 18, 2015. (Photo by Matthew J. Lee/The Boston Globe via Getty Images)
FOXBORO, MA - JANUARY 18: Andrew Luck #12 of the Indianapolis Colts reacts in the fourth quarter against the New England Patriots in the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Maddie Meyer/Getty Images)
FOXBORO, MA - JANUARY 18: Zurlon Tipton #37 of the Indianapolis Colts runs with the ball against Jamie Collins #91 of the New England Patriots in the fourth quarter of the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Jared Wickerham/Getty Images)
FOXBORO, MA - JANUARY 18: Andrew Luck #12 of the Indianapolis Colts looks to pass in the second half against the New England Patriots of the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Elsa/Getty Images)
FOXBOROUGH, MA - JANUARY 18: Patriots quarterback Tom Brady celebrates Blount's touchdown in the 3rd quarter action during the AFC Championship Game between the New England Patriots and the Indianapolis Colts at Gillette Stadium on January 18, 2015. (Photo by Stan Grossfeld/The Boston Globe via Getty Images)
FOXBORO, MA - JANUARY 18: Jamie Collins #91 of the New England Patriots celebrates with teammates after an interception against the Indianapolis Colts in the fourth quarter of the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Jim Rogash/Getty Images)
FOXBORO, MA - JANUARY 18: Tom Brady #12 of the New England Patriots reacts on the sideline in the second half against the Indianapolis Colts of the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Al Bello/Getty Images)
FOXBOROUGH, MA - JANUARY 18: Patriots tight end Rob Gronkowski reception in 3rd quarter action during the AFC Championship Game between the New England Patriots and the Indianapolis Colts at Gillette Stadium on January 18, 2015. (Photo by Stan Grossfeld/The Boston Globe via Getty Images)
FOXBORO, MA - JANUARY 18: Julian Edelman #11 of the New England Patriots makes a catch against D'Qwell Jackson #52 of the Indianapolis Colts of the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Elsa/Getty Images)
FOXBORO, MA - JANUARY 18: LeGarrette Blount #29 of the New England Patriots runs with the ball in the second half against the Indianapolis Colts of the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Elsa/Getty Images)
FOXBOROUGH, MA - JANUARY 18: Rob Gronkowski spikes the ball after making a touchdown in the third quarter at Gillette Stadium Sunday, January 18, 2015. AFC Championship Game between the New England Patriots and the Indianapolis Colts. (Photo by Jim Davis/The Boston Globe via Getty Images)
FOXBORO, MA - JANUARY 18: Nate Solder #77 of the New England Patriots celebrates a touchdown with teammates in the second half against the Indianapolis Colts of the 2015 AFC Championship Game at Gillette Stadium on January 18, 2015 in Foxboro, Massachusetts. (Photo by Jim Rogash/Getty Images)
Indianapolis Colts players sit on the bench during the second half of the NFL football AFC Championship game against the New England Patriots Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
Indianapolis Colts quarterback Andrew Luck throws his head back after throwing and interception during the second half of the NFL football AFC Championship game against the New England Patriots Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Julio Cortez)
New England Patriots tight end Rob Gronkowski (87) celebrates with teammate Timothy Wright after his five-yard touchdown pass during the second half of the NFL football AFC Championship game against the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
New England Patriots wide receiver Julian Edelman (11) celebrates with Rob Gronkowski, rear, after Gronkowski's five-yard touchdown pass catch during the second half of the NFL football AFC Championship game against the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
New England Patriots tight end Rob Gronkowski (87) celebrates with teammate Timothy Wright after his five-yard touchdown catch during the second half of the NFL football AFC Championship game against the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
Indianapolis Colts quarterback Andrew Luck sits on the sidelines during the first half of the NFL football AFC Championship game against the New England Patriots Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Julio Cortez)
New England Patriots tackle Nate Solder scores against Indianapolis Colts inside linebacker D'Qwell Jackson (52) on a 16-yard touchdown pass from quarterback Tom Brady during the second half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
New England Patriots head coach Bill Belichick signals to his team during the second half of the NFL football AFC Championship game against the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
New England Patriots tight end Rob Gronkowski (87) spikes the ball after catching a five-yard touchdown pass during the second half of the NFL football AFC Championship game against the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
New England Patriots quarterback Tom Brady (12) passes against the Indianapolis Colts during the second half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Charles Krupa)
New England Patriots defensive end Chandler Jones (95) leaps over Indianapolis Colts guard Lance Louis (60) as quarterback Andrew Luck passes during the first half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
Indianapolis Colts head coach Chuck Pagano congratulates Andrew Luck after Zurlon Tipton's one-yard touchdown run during the first half of the NFL football AFC Championship game against the New England Patriots Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
Indianapolis Colts quarterback Andrew Luck (12) congratulates his teammates after Zurlon Tipton's one-yard touchdown run during the first half of the NFL football AFC Championship game against the New England Patriots Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
Indianapolis Colts quarterback Andrew Luck looks out onto the field from the sideline during the first half of the NFL football AFC Championship game against the New England Patriots Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Julio Cortez)
New England Patriots running back LeGarrette Blount, left, is tackled by Indianapolis Colts defensive end Arthur Jones (97) and safety Mike Adams, below, during the first half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
New England Patriots running back LeGarrette Blount (29) is tackled by Indianapolis Colts cornerback Greg Toler (28) during the first half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
Indianapolis Colts quarterback Andrew Luck (12) passes in front of New England Patriots defensive end Chandler Jones (95) during the first half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
A New England Patriots fan holds up a cut-out of quarterback Tom Brady during the first half of the NFL football AFC Championship game against the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
New England Patriots fullback James Develin (46) celebrates after his one-yard touchdown catch against the Indianapolis Colts during the first half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Charles Krupa)
Indianapolis Colts inside linebacker D'Qwell Jackson, left, tries to stop New England Patriots fullback James Develin (46) as he scores on a one-yard touchdown pass during the first half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Julio Cortez)
New England Patriots fullback James Develin (46) celebrates after his one-yard touchdown catch against the Indianapolis Colts during the first half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Charles Krupa)
A New England Patriots cheers during the first half of the NFL football AFC Championship game between the Patriots and the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
New England Patriots quarterback Tom Brady looks to pass during the first half of the NFL football AFC Championship game against the Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Matt Slocum)
New England Patriots wide receiver Julian Edelman (11) is tackled by Indianapolis Colts cornerback Darius Butler during the first half of the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Julio Cortez)
New England Patriots fans cheer before the NFL football AFC Championship game between the Patriots and Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
New England Patriots fans cheer with a sign that refers to Patriots tight end Rob Gronkowski before the NFL football AFC Championship game between the Patriots and Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. (AP Photo/Elise Amendola)
New England Patriots owner Robert Kraft, center, shakes hands with Patriots defensive end Chandler Jones before the NFL football AFC Championship game between the Patriots and Indianapolis Colts Sunday, Jan. 18, 2015, in Foxborough, Mass. At left is U.S. Secretary of State John Kerry. (AP Photo/Elise Amendola)
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Belichick did not specify who in the Patriots organization was responsible for the underinflated balls, or absolve anyone besides himself of potential wrongdoing.

Softer balls are generally considered easier to throw and catch, and quarterbacks, specialists and equipment managers are known to have very individualized preferences in how footballs are readied for games. Belichick said he was unaware of the process for game balls until the accusations were raised.

Belichick says he sometimes hears quarterbacks, kickers and other specialists talk about their preferences.

"I can tell you and they will tell you that there is never any sympathy from me whatsoever on that subject. Zero," Belichick said.

Patriots quarterback Tom Brady is expected to address reporters later Thursday.

Belichick says the Patriots going forward will inflate footballs to a safe level to prevent them from dropping below allowable air pressure during games.

"We will take steps in the future to make sure that we don't put ourselves in this type of situation again," he said.

The coach who has won three Super Bowls said he generally forces players to practice under bad ball conditions.

"Anytime players complain about the quality of the footballs, I make it worse and that stops the complaints," he said.

The issue has drawn strong reaction from around the game and its fans as the Patriots prepare to play the Seattle Seahawks on Feb. 1 in Glendale, Arizona, for the NFL title.

Belichick declined to answer several questions after his opening remarks at his press conference, answering several questions by saying: "I've told you everything I know," and "I don't have an explanation."

Bill Belichick Talks 'Deflategate'


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