Tyson Fury has warned that he wants a dominant world title reign like Wladimir Klitschko - and intends to remain as the No 1 heavyweight until he retires.
Fury ended Klitschko's long spell as a unified champion with a points win in 2015, then became a two-time world title holder with a sensational stoppage win over Deontay Wilder in February of this year.
The unbeaten 31-year-old is no longer striving for recognition or financial reward after claiming every major belt in the division, but revealed how his mental health has benefited from his continued dedication to the sport.
Fury exclusively told Sky Sports: "I've achieved more than any active heavyweight alive today. No-one can come close to what I've achieved. I'm happy with where I am in my career and what I'm doing. If I never have another boxing fight, I'll be happy. I've completed the game.
I ain't boxing for money, I ain't boxing for fame, I ain't boxing for a belt. I'm boxing because it keeps me mentally happy and I like to do it.
"I've won every single belt in boxing. From the English title to becoming the undisputed heavyweight champ of the world. All done, all finished. Considered the best, done. If I don't box again, I'm happy, but if I do box again, then I continue to box. If we get past this thing, which hopefully we will, then we're going to keep boxing and just keep taking on contenders.
"Klitschko did it until he was 40. A lot of the great champions are continuing, and continuing. I ain't boxing for money, I ain't boxing for fame, I ain't boxing for a belt. I'm boxing because it keeps me mentally happy and I like to do it.
"Nothing to prove to anybody. Not one thing to prove at all, but I box now, because I love boxing and I've been doing it all my life. Why walk away when I'm still only young?
"Hopefully I box until I have a good sit down with all the team and we all decide it's time to walk away, while I'm on top, and then sail away into the sunset, and then who knows what will happen after that."
Promoter Eddie Hearn has admitted that he is eager to secure at least two British battles between Fury and current unified champion Anthony Joshua, with all the world titles at stake.
"It would probably be a two-fight deal," Hearn told Sky Sports. "Any deal between Fury and AJ, you run it twice.
"It is not a condition of the deal but it was in their deal with Deontay Wilder, and it is the biggest fight in boxing, so it is likely you will see that twice."
Fury's immediate priority is a contracted third fight with Wilder, with a date and venue to be confirmed, and the British star admits he is relishing the chance to further defy his doubters.
"They said I'd never do it, they said I would never have the dedication," said Fury.
"Then they wrote me off because I wasn't body beautiful like everybody else, then they wrote me off because the heavyweight champion of the world was Wladimir Klitschko. I had to go to Germany, that was a write-off, and then they wrote me off because I went to 28 stone and had mental health problems, but that couldn't keep me down.
"Then they wrote me off because I had to fight the biggest puncher in the history of boxing after only two, petty comeback fights, but that didn't keep me down.
"Then they wrote me off, because I'm all washed up and I can't take a punch anymore, and then they wrote me off because I got a massive cut. Then they wrote me off because I had 10 changes of trainers.
"Then they wrote me off because Wilder was going to be better the second time around, and then they wrote me off because they said they didn't believe in what I was going to do and I'm a feather-duster puncher, and I can't crack an egg, and I'm useless.
"But here I am today, stand-alone heavyweight, leading superstar in boxing. I'm still fat, still ugly, still bald, still a big man, and I'm still unstoppable."