WBC heavyweight world champion Tyson Fury has confirmed he will not return to the ring, saying he has not got "anything more to give" and that "no amount of money" would lure him back.
Fury (32-0-1, 23 KOs) defeated Dillian Whyte in a sixth-round stoppage in front of a sell-out crowd at Wembley Stadium on Saturday to retain his heavyweight crown, telling fans afterwards it was unlikely he would fight again.
"This is the truth, the gospel truth, nothing but the truth, I'm done," Fury said on Piers Morgan Uncensored on Wednesday. "You know every good dog has his day and like the Roman leader said, there will always be someone else to fight."
"The fans will always want more, they are always baying for more blood. But at the end of the day I don't have anything more to give.
"I've given everything I've got. I've been a professional 14 years, I've been boxing over 20 years.
"My time is to go out on a high. I always said that I wanted to walk away on top of the sport, and do it on my terms, and I didn't want to be the person who said: 'Well, I should have maybe retired two years ago,' or whatever.
"I just wanted to walk out on top, go out with a bang. Nearly 100,000 at Wembley, with a knockout performance. They will not forget the Gypsy King in a hurry, and no amount of material assets or money will make me come back out of retirement because I'm very happy."
The 33-year-old, who previously promised his wife he would retire, extended his unbeaten record to 32 wins and a draw with Saturday's victory over Whyte (28-3, 19 KOs).
After the bout, he indicated he has no interest in facing the winner of Oleksandr Usyk's WBA, IBF and WBO champion title defence against Anthony Joshua, set for July 23.
"I'm quitting while I'm ahead. I'm undefeated, only the second man in history to retire undefeated heavyweight champion," Fury added.
"When is enough enough? I'm happy, I'm healthy, I've still got my brains, I can still talk."
"I've got a beautiful wife, I've got six kids, I've got umpteen belts, I've got plenty of money, success, fame, glory. What more am I doing it for?"