TYSON FURY is "training like a man possessed" while he plans a sensational return fight against Oleksandr Uzyk.
After seeing his British rival Antony Joshua lose a second consecutive battle to the Ukrainian earlier in the month, the Gypsy King has been "relentlessly" working.
Oleksandr Usyk beat Anthony Joshua in a rematch earlier in the month
Tyson Fury has been lit by the sight of Usyk overcoming Joshua.
The Gypsy King is "relentlessly training" in preparation for their undisputed bout
SunSport was informed by a source close to the 34 year-old: "Tyson trains really, really hard. He is in fight mode, and he is completely focused on Usyk.
"Ever since the Usyk-vs Joshua fight, he's been at the gym, on road and sparring.
He wants to be in his best shape and is working towards a contest in 2023.
"Right now, he's like a man possessed. Retirement is not the last thing on him mind.
Tyson's happy place is training, and right now he works tirelessly.
Fury, now 34, is ready for retirement and to unify the heavyweight division, after Usyk called him out.
The deadline to agree on the blockbuster fight was set by the former champion at unified heavyweight.
After successfully defending his belts against Joshua in the Saudi rematch, Usyk is now flying high. He won via split decision.
The tale of the tape: Tyson Fury and Oleksandr Usyk
WBC heavyweight champion Fury will tell Mexico's sanctioning body that he WILL again fight.
Fury however wants a record P500MILLION to be used in the undisputed clash. This is currently being planned for December.
On Instagram, he wrote: "The biggest fight in the world has to be the biggest money in the world if I'm going to put it all on line vs any unknown foreigner."
"Boys, you better get half a billy. Keep that little mug if you don't have one.
He appears to be confident that an agreement is near after declaring that he will make light work out of Usyk in only four rounds.
Wythenshawe's warrior stated: "I'm certain I'll smash his head in four rounds because the Gypsy King has said so."
American heavyweight competitor Michael Hunter is the only man to have fought Fury and Usyk.
Fury's dominance in the division is overthrown by Usyk, he believes.
Sky Sports was informed by him that Usyk would have to make some adjustments but that the weight won't make as big a difference as people believe.
He's an endurance athlete and will move a lot. It's a style-make-fights thing.
"I believe it would be an exciting fight. "I'm sure Usyk would win."