Tom Brady, one of the greatest players in the history of the NFL, has confirmed his retirement.
The Tampa Bay Buccaneers quarterback, 44, won seven Super Bowls in an astonishing career spanning 22 seasons.
Brady won six titles with the New England Patriots before his final triumph with the Buccaneers last year.
The five-time Super Bowl Most Valuable Player is retiring after deciding he could no longer make the "competitive commitment" to continue.
His final game in the NFL was a 30-27 loss to the Los Angeles Rams in the play-offs, when his heroics narrowly failed to pull off a sensational comeback from 27-3 down.
Brady, a three-time NFL season MVP, had a year remaining on his contract with the Bucs.
In a statement posted on social media, he said: "I have always believed the sport of football is an 'all-in' proposition - if a 100% competitive commitment isn't there, you won't succeed, and success is what I love so much about our game.
"My playing career has been such a thrilling ride, and far beyond my imagination, and full of ups and downs. When you're in it every day, you really don't think about any kind of ending.
"As I sit here now, however, I think of all the great players and coaches I was privileged to play with and against - the competition was fierce and deep, just how we like it.
"But the friendships and relationships are just as fierce and deep. I will remember and cherish these memories and revisit them often.
"I feel like the luckiest person in the world."
Following Brady's announcement, the Patriots tweeted:external-link "It was quite the ride. Thank you and congratulations, Tom Brady."
Meanwhile the Buccaneers said:external-link "Memories to last a lifetime. Thank you."
Brady played in 10 Super Bowls, including an incredible comeback from 28-3 down against the Atlanta Falcons in 2017, and had a perfect 16-0 regular season with the Patriots in 2007.
He won a Super Bowl in three different decades and retires after amassing a career-high 5,316 passing yards in his final season.
Brady leads the all-time passing statistics, with 84,520 yards - more than 4,000 clear of his nearest rival, the retired Drew Brees.
His announcement on Tuesday comes after conflicting reports over the weekend about his future.
It was widely reported on Saturday evening that he had decided to retire, but his company TB12 Sports then deleted a tweet appearing to confirm the news.
And later, speaking to the NFL Network, Brady's father Tom Brady Sr said his son had not yet "made a final decision".external-link
On Monday, the former Patriots superstar said he was considering his future on a day-to-day basis.
Tom Brady won his seventh and final Super Bowl last year'An incredible competitor and leader'
NFL commissioner Roger Goodell said Brady would be remembered "as one of the greatest to ever play in the NFL".
He added: "An incredible competitor and leader, his stellar career is remarkable for its longevity but also the sustained excellence he displayed year after year.
"Tom made everyone around him better and always seemed to rise to the occasion in the biggest moments."
Two-time Super Bowl winner Peyton Manning paid tribute to his former rival, saying: "Congratulations to my friend Tom on an unbelievable football career.
"To do it as long as he did, at the highest of levels, is absolutely incredible. It was an honour and a privilege to compete against him on the field, and I truly appreciate his friendship off the field.
"I have always admired and respected his competitiveness, his dedication, his discipline, and his commitment to being the best. I wish him the best in his next chapter. Congratulations again, pal!"
Brady's career in numbers
Super Bowl appearances: 10
Super Bowls won: 7 (record) - 2002, 2004, 2005, 2015, 2017, 2019, 2021
Super Bowls lost: 3 - 2008, 2012, 2018
Super Bowl touchdown passes: 21 (record)
Super Bowl Most Valuable Player: 5 (record) - 2002, 2004, 2015, 2017, 2021
NFL Most Valuable Player: 3 - 2007, 2010, 2017
NFL Comeback Player of the Year - 2009
Pro Bowl (all-star) selections: 14
NFL touchdown pass leader: 2002, 2007, 2010, 2015
NFL passing yards leader: 2005, 2007, 2017