To be as good as Tom Brady is at age 39 requires a super-natural desire to compete.
And during Brady's 19 years in the NFL, his competitiveness has become legendary.
Across the league, there are stories of Brady's intense desire to win, top-notch preparation off the field, and extreme self-confidence that prove nobody loves competing as much as Brady.
Check out 33 of the best examples of Brady's competitiveness below:
33 examples of Tom Brady's competitiveness
It started in high school for Brady. He used to have his high school teammates over his house to study film while his mom made them lunch.
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But it wasn't always easy. He hired a psychologist to deal with the stress of being the seventh-string QB when he first got to Michigan.
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Tom Brady knew he'd be great. When he was drafted, he reportedly told Patriots owner Robert Kraft, "I'm the best decision this organization has ever made."
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He told his high-school coach after getting drafted that if he ever got the chance to start in the NFL, the Patriots would never go back to Drew Bledsoe.
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And when Brady finally got the starting job, he told his backup it was no sweat. "I'm going to be one of the best at this game," he said.
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19 years later, Brady says he wants to play until he's 48!
Former Patriot Dan Koppen said that Brady is the most competitive person he's ever met.
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Former Patriots backup Damien Huard said Brady once gave his teammates a pep-talk to make sure they wouldn't lose to a group of local firemen in a charity game.
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Patriots receiver Danny Amendola said Brady once broke a ping pong paddle after Amendola beat him in a match.
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Similarly, Huard called Brady a "psychotic competitor," referencing a time Brady threw a backgammon board across the room because he lost.
He doesn't take losing well. He admitted that he had to work on his body language so as not to be too hard on his teammates.
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He's always intense. Don't ask Brady to play a game of catch: He'll drill the ball at you from 5 yards away, according to Brandon LaFell.
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Before afternoon games, Brady makes receivers prepare to stare into the sun by catching balls from the direction where the sun will shine during the game.
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Brady micromanages his life to play at an age when others retire. For instance, he goes to bed at 8:30 to stay fresh.
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And he does it without an alarm by doing brain exercises before bed.
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He also has a ridiculous diet that few others could follow.
The diet doesn't even include popular healthy foods like tomatoes, peppers, or mushrooms.
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And for a treat? Avocado-based ice cream.
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And somehow, he keeps improving. Brady has worked to get quicker, and at age 39, says he's faster than he was coming out of college!
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He has a healthy respect for good competition. Seattle Seahawks defensive end Michael Bennett said Brady compliments players who sack him.
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And former Patriot Dante Stallworth said that Brady would pay practice-squad players who intercepted him.
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Opponents say he's one of the only quarterbacks who will mix it up and talk trash.
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But don't taunt him too much. A college friend said Brady once leveled an opponent during an intramural basketball game because he was trash-talking Tom.
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Brady used "Joker! Rex Ryan, Rex Ryan!" as an audible call as a shot against the Buffalo Bills coach.
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Former teammate Darrelle Revis described Brady's desire to win as a "sickness."
Brady said nothing relieves his anger like a good F-bomb tirade.
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There was speculation that during Deflategate Brady wouldn't take a lesser punishment because it would admit some sort of wrongdoing.
His emails revealed that he called ESPN analyst Mark Brunell a "Patriot hater" for doubting Brady's case in Deflategate.
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When Brady was suspended for Deflategate, he couldn't be around the team. He apparently called up former Patriots receiver Wes Welker to play catch with him so he could stay sharp.
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He called his first game back from his Deflategate suspension "rusty." He threw for over 400 yards and three touchdowns.
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Don't ask him to sign a photo where his mechanics look bad — he won't do it.
When asked about retirement plans, Brady quipped, "What am I going to do, go scuba diving?"
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But it's all worthwhile for the Patriots. Brady's teammates say every practice is like a game because Brady is so intense.
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