Tyson Fury, Britain's heavyweight world champion, has announced that he will retire after defending his WBC championship against Dillian Whyte in April.
The 33-year-old is a two-time world champion who has won 31 of 32 professional matches.
He drew the first of three fights with American Deontay Wilder before winning the second and third.
When asked if he would call it quits after his bout with Whyte on April 23 at Wembley Stadium, Fury replied, "100%."
"I'm a two-time undisputed world champion," Fury declared following his press conference to advertise his forthcoming fight.
"I've got £150 million in the bank and nothing to prove to anyone."
Fury - who has hinted at walking away from boxing before - was expected to face the winner of Anthony Joshua's rematch with Ukranian WBA (Super), IBF and WBO champion Oleksandr Usyk later this year, should he beat Whyte.
Fury claims compatriot Whyte is "terrified" after the Londoner missed the pair's pre-fight press conference.
Whyte is the obligatory challenger to Fury's WBC belt, and he is said to be training in Portugal.
"In my opinion, he's obviously waved the white flag," Fury remarked.
Whyte is only receiving 20% of the fight money, and there were rumors that he was trying to renegotiate terms before signing his contract last week.
However, Fury's promoter, Frank Warren, claimed the 33-year-old was receiving a career-high pay day.
Fury continued: "It's incredible how much more confidence he's given me.
"He's scared to death. The way he's acting, claiming he doesn't want to meet me face to face, of course he doesn't, because he'll see the fire in my eyes and he'll be terrified.
"That's exactly what it is - fear and terror." It's all of the above, and I'm not surprised he's not here today."
However, Whyte's lawyer, Jeff Benz, claims his client is not participating in the fight's promotion because "we still do not have things settled."
"They [Warren's firm Queensberry Promotions] went through two lawyers and brought forward a whole lot of new stuff that we hadn't discussed for the entire week we were negotiating," Benz told BBC Radio 5 Live.
"We said no to most of those last-minute requests, but it was an intriguing experience."
"Because they won't give us the size of the ring, we don't know where Dillian will compete."
"This is typical."
