Rehabbed Ben Affleck to attend Matt Damon’s wild birthday bash in Vegas: ‘He thinks he’s okay to party’

Matt Damon is planning to ring in another year with a birthday bash in Las Vegas this weekend, and RadarOnline.com has learned exclusively recently-rehabbed BFF Ben Affleck may be attending the wild night.

Insiders reveal the birthday boy and his crew are worried the boozehound actor is going to be the party pooper at the Friday night bash in Sin City, where the big UFC fight — Khabib vs McGregor — is also going down.

“Ben’s invited,” continued the source, “but it’s more like they’re trying to dis-invite him.”

“He thinks he’s okay to go to the party,” said the source. “It’s been planned for months, way before his stint in rehab. But those who are going to Vegas for Matt are concerned. They think Ben will blow all the fun because everyone will be so focused on him, if he’s doing okay — and if he’s drinking.”

16 PHOTOS
Ben Affleck and Matt Damon through the years
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Ben Affleck and Matt Damon through the years
Matt Damon and Ben Affleck stand arm in arm at the premiere of Good Will Hunting. Both co-scripted and starred in the movie. (Photo by Mitchell Gerber/Corbis/VCG via Getty Images)
Actor Ben Affleck and actor Matt Damon attend the 55th Annual Golden Globe Awards on January 18, 1998 at Beverly Hilton Hotel in Beverly Hills, California. (Photo by Ron Galella, Ltd./WireImage)
Matt Damon and Ben Affleck (Photo by Jim Smeal/WireImage)
LOS ANGELES, CA - MARCH 21: Actors Matt Damon and Ben Affleck attend The 71st Annual Academy Awards - Arrivals on March 21, 1999 at the Dorothy Chandler Pavilion in Los Angeles, California. (Photo by Ron Davis/Getty Images)
Matt Damon and Ben Affleck during The 72nd Annual Academy Awards - Vanity Fair Party at Morton's in Los Angeles, California, United States. (Photo by Jeff Kravitz/FilmMagic, Inc)
Ben Affleck & Matt Damon during Project Greenlight Announces Top Three Finalists at Galaxy Theatre in Hollywood, California, United States. (Photo by J. Vespa/WireImage)
Ben Affleck and Matt Damon during 2003 Park City - Project Greenlight/Express Party at Harry O's at Harry O's in Park City, Utah, United States. (Photo by Dimitrios Kambouris/WireImage)
HOLLYWOOD - JULY 13: Actors Ben Affleck (left) and Matt Damon (right) attend the announcement of the winners of this year's Project Greenlight on July 13, 2004 at The Highlands, in Hollywood, California. (Photo by Carlo Allegri/Getty Images)
Matt Damon and Ben Affleck during 'Feast' World Premiere at Brenden Theaters at The Palms Hotel and Casino Resort in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)
TORONTO, ON - SEPTEMBER 09: Actors Ben Affleck and Matt Damon attend the OneXOne Gala at the Four Seasons Performance Centre on Sept. 9, 2007 in Toronto, Ontario. (Photo by George Pimentel/WireImage)
LAS VEGAS - JULY 02: Actors Ben Affleck (L) and Matt Damon arrive at the Ante Up for Africa celebrity poker tournament at the Rio Hotel & Casino July 2, 2009 in Las Vegas, Nevada. Proceeds from the event will benefit survivors of the humanitarian crisis in Darfur, Sudan. (Photo by Ethan Miller/Getty Images)
LOS ANGELES, CA - JANUARY 14: Matt Damon and Ben Affleck during the 16th annual Critics' Choice Movie Awards at the Hollywood Palladium on January 14, 2011 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for VH1)
Actor Ben Affleck presents Matt Damon with his award at the 24th Annual American Cinematheque Award presentation to Matt Damon, held at the Beverly Hilton Hotel. (Photo by Frank Trapper/Corbis via Getty Images)
SANTA BARBARA, CA - JANUARY 25: Actors Ben Affleck and Matt Damon attend the Modern Master Award presented To Ben Affleck at the 28th Santa Barbara International Film Festival on January 25, 2013 in Santa Barbara, California. (Photo by Ray Mickshaw/WireImage)
HOLLYWOOD, CA - NOVEMBER 07: Actors Matt Damon and Ben Affleck attend the 'Project Greenlight' event at Boulevard3 on November 7, 2014 in Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
HOLLYWOOD, CA - JANUARY 09: Actors Matt Damon (L) and Ben Affleck arrive at the Premiere Of Warner Bros. Pictures' 'Live By Night' at TCL Chinese Theatre on January 9, 2017 in Hollywood, California. (Photo by Frazer Harrison/Getty Images)
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So friends are hatching a plan to keep the Batman star in Los Angeles.

“The plan is to tell Jennifer not to let him go,” the source told Radar exclusively. “They are hoping, like before, she will lay down the law and he’ll listen.”

As Radar readers, Affleck faced a huge setback in August when his estranged wife Jennifer Garner drove him to rehab after a much-needed intervention.

The troubled Daredevil star, 46, has struggled with sobriety for years, reportedly going in and out of treatment three times and receiving outside guidance from sober coaches over the years.

44 PHOTOS
Ben Affleck out and about
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Ben Affleck out and about
LOS ANGELES, CA - MARCH 19: Ben Affleck is seen on March 19, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 25: Ben Affleck is seen on February 25, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 27: Jennifer Garner and Ben Affleck are seen on February 27, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 03: Ben Affleck is seen on February 03, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 28: Ben Affleck is seen on January 28, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 27: Ben Affleck is seen on January 27, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
NEW YORK, NY - JANUARY 23: Ben Affleck seen out and about in Manhatttan on January 23, 2018 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - JANUARY 22: Ben Affleck is seen in the Upper West Side on January 22, 2018 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - JANUARY 21: Ben Affleck and Lindsay Shookus enjoy coffee while holding hands on January 21, 2018 in New York City. (Photo by Gotham/GC Images)
LOS ANGELES, CA - JANUARY 08: Ben Affleck is seen on January 08, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
HOLLYWOOD, CA - NOVEMBER 13: Ben Affleck attends the premiere of Warner Bros. Pictures' 'Justice League' on November 13, 2017 in Los Angeles, California. (Photo by JB Lacroix/ WireImage)
NEW YORK, NY - NOVEMBER 17: Ben Affleck and Lindsay Shookus are seen on November 17, 2017 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK - NOVEMBER 16: The Late Show with Stephen Colbert and guest Ben Affleck during Thursday's November 16, 2017 show. (Photo by Scott Kowalchyk/CBS via Getty Images)
NEW YORK, NY - NOVEMBER 16: Ben Affleck departs Ed Sullivan Theater after his taping of 'The Late Show With Stephen Colbert 'on November 16, 2017 in New York City. (Photo by Karl Moor/GC Images)
NEW YORK, NY - NOVEMBER 14: Ben Affleck seen at JFK Airport on November 14, 2017 in New York City. (Photo by Robert Kamau/GC Images)
HOLLYWOOD, CA - NOVEMBER 13: Ben Affleck arrives at the Premiere Of Warner Bros. Pictures' 'Justice League' at Dolby Theatre on November 13, 2017 in Hollywood, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - FEBRUARY 27: Jennifer Garner and Ben Affleck are seen on February 27, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 25: Ben Affleck is seen on February 25, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 25: Ben Affleck is seen on February 25, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 21: Ben Affleck is seen on February 21, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 15: Ben Affleck is seen on February 15, 2019 in Los Angeles, California. (Photo by PG/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 15: Ben Affleck is seen on February 15, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 14: Ben Affleck is seen arriving at 'Jimmy Kimmel Live' on February 14, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 14: Ben Affleck is seen at 'Jimmy Kimmel Live' on February 14, 2019 in Los Angeles, California. (Photo by RB/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 08: Ben Affleck is seen on February 08, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 08: Ben Affleck is seen on February 08, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 05: Ben Affleck is seen on February 05, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 24: Ben Affleck is seen on January 24, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 24: Ben Affleck is seen on January 24, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 24: Ben Affleck is seen on January 24, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 22: Ben Affleck is seen on January 22, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 20: Ben Affleck and Jennifer Garner are seen on January 20, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 20: Ben Affleck and Jennifer Garner are seen on January 20, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 20: Ben Affleck is seen on January 20, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 18: Ben Affleck is seen on January 18, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 18: Ben Affleck is seen on January 18, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 18: Ben Affleck is seen on January 18, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 16: Ben Affleck is seen on January 16, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 15: Ben Affleck is seen on January 15, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 11: Ben Affleck is seen on January 11, 2019 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
TOPSHOT - 2018 Nobel Peace Prize laureate Doctor Denis Mukwege (L) shakes hands with US Actor Ben Affleck (R) as he prepares to leave, following a meeting, at the Panzi hospital, in Bukavu, on December 29, 2018. - Denis Mukwege is a crusading gynaecologist who has spent more than two decades treating appalling injuries inflicted on women in the DRC. (Photo by Fredrik Lerneryd / AFP) (Photo credit should read FREDRIK LERNERYD/AFP/Getty Images)
2018 Nobel Peace Prize laureate Doctor Denis Mukwege (L) hughs US Actor Ben Affleck (R) as he prepares to leave, following a meeting, at the Panzi hospital, in Bukavu, on December 29, 2018. - Denis Mukwege is a crusading gynaecologist who has spent more than two decades treating appalling injuries inflicted on women in the DRC. (Photo by Fredrik Lerneryd / AFP) (Photo credit should read FREDRIK LERNERYD/AFP/Getty Images)
US Actor Ben Affleck (L) and 2018 Nobel Peace Prize laureate Doctor Denis Mukwege (R) speak to the press following a meeting at the Panzi hospital, in Bukavu, on December 29, 2018. - Denis Mukwege is a crusading gynaecologist who has spent more than two decades treating appalling injuries inflicted on women in the DRC. (Photo by Fredrik Lerneryd / AFP) (Photo credit should read FREDRIK LERNERYD/AFP/Getty Images)
US Actor Ben Affleck (L) and 2018 Nobel Peace Prize laureate Doctor Denis Mukwege (R) speak to the press following a meeting at the Panzi hospital, in Bukavu, on December 29, 2018. - Denis Mukwege is a crusading gynaecologist who has spent more than two decades treating appalling injuries inflicted on women in the DRC. (Photo by Fredrik Lerneryd / AFP) (Photo credit should read FREDRIK LERNERYD/AFP/Getty Images)
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