Tampa Bay Buccaneers quarterback Tom Brady Max Gersh/IndyStar / USA TODAY NETWORK

Most people felt that Tom Brady had nothing left to prove about three or four championships ago, but the star quarterback continues to find ways to stay motivated. Had the 2007 New England Patriots completed their perfect season, that might not have been the case.

Episode 4 of the ESPN+ documentary “Man in the Arena,” which will air next week but was previewed by NESN’s Zack Cox, covers the 2007 Patriots. In the episode, Brady makes a surprising revelation about how New England’s loss in Super Bowl XLII shaped his career. Had the Patriots won and completed their 19-0 season, Brady says he may have retired a lot sooner.

“Had we won that game — I don’t know, I’m not a big hypothetical guy — but maybe the desire is a little bit different, if you’re looking at a silver lining,” Brady said. “Maybe the desire to reach that point, maybe I would have been fulfilled — not to stop playing at that time, but I don’t know. Maybe I’d play another seven or eight years, and maybe I’m fulfilled. Maybe not.”

Brady has won seven Super Bowls. His legacy is secure. Even if he wins an eighth or ninth or 10th, his career will still be viewed the same. He doesn’t need an undefeated season to be considered the greatest quarterback of all time, but it obviously bothers him that he came so close and fell four points short of completing it.

We tend to think Brady would have found other ways to stay driven and kept playing regardless of what happened in 2007. That said, Brady made a comment earlier this year that proved how much the loss in Super Bowl XLII stung him. No matter how many games or championships he wins, he clearly will never get over that one shortcoming.

More must-reads:

TODAY'S BEST
WNBA to investigate $100,000 sponsorship deals for Aces players
Tiger Woods blames one big factor for missing the cut at PGA Championship
Giants All-Star pitcher suffers setback in recovery from injury
Watch: Juan Soto's first multi-homer game as a Yankee
'Ain't good enough': Draymond Green claims Celtics must 'win it all' or it's a 'failure'
Blue Jays GM wants struggling club to feel 'massive sense of urgency'
Raptors expected to flip former NBA champion during the offseason
MLB insider reveals Mets' massive extension offer that Pete Alonso turned down
Celtics legend provides update after gruesome finger injury
Bulls hire former NBA head coach as top assistant
Chiefs move on from young running back
20-year MLB veteran working out, unsure about playing future
USA Hockey names HC for 2025 4 Nations Face-Off and 2026 Olympics
Key Knicks forward ruled out for Game 7 vs. Pacers
Pacers' Pascal Siakam leads team to Game 6 win vs. Knicks
Watch: Matt Duchene's 2OT winner sends Stars to conference final
Scottie Scheffler shoots improbable 66 after warming up for PGA Championship in a jail cell
Report: Tua Tagovailoa away from Dolphins amid contract chatter
Nuggets star has worrying comment about latest injury
Paul Skenes makes incredible Wrigley Field history in second-career MLB start

Want more sports news?

Join the hundreds of thousands of fans who start their day with Yardbarker's Morning Bark, the best newsletter in sports.