Matchroom chief Eddie Hearn says that Tyson Fury looks vulnerable in his world heavyweight clash with Deontay Wilder on Saturday.
Anthony Joshua's promoter Hearn has claimed that Fury "doesn't look ready" for the trilogy bout in Las Vegas.
Delayed due to Fury contracting Covid-19, the 'Gypsy King' is set to fight Wilder for a third time and will be looking to follow up his comprehensive victory in February 2020.
The fight looked set to be the final hurdle before a unification bout with Joshua. However, Joshua's defeat to Oleksandr Usyk last weekend has thrown those plans into disarray.
The pair could still meet in a British super fight, but fellow Brit Dillian Whyte could be Fury's next opponent, if he can get past the 'Bronze Bomber' once again.
But Hearn is wary of the Alabama man's big right-hand, and thinks Fury may have taken Wilder for granted.
"Tyson Fury doesn't look ready, in my opinion. I still think he'll win comfortably, but it does throw in the likelihood of a mistake happening," Hearn told Boxing Social.
"If you make a mistake against Deontay Wilder, it could cost you the fight. He's very dangerous. I don't see him [Fury] losing a round, but it doesn't really matter. One mistake, and it can be over.
"I generally hope he wins because I want the WBC to order the mandatory of Fury - [Dillian] Whyte."
Fury has not been seen in the ring since the second fight with Wilder in February 2020. That was one of the 33-year-old's best displays, with Wilder's camp throwing in the towel in the seventh round.
The Brit though has had a disrupted year, with the original date for the Wilder fight having to be postponed when Fury contracted Covid-19.
Previous to that Fury saw a potential fight with Joshua axed when Wilder won his arbitration case which ruled that his trilogy fight with Fury must happen next.
Fury then took time off his training camp in August following the birth of his daughter, who spent time in intensive care due to health problems.
The Manchester-born fighter is expected to weigh in heavier than he has ever been.
He was 273 pounds when pummelled Wilder last time out, but he could be closer to 300 pounds this time.
And sarcastically he invited Wilder to throw more punches when they meet on Saturday.
"I think he can try to land more punches on my face," Fury said in a Zoom media conference call. "That will help his chances of winning.
"It's usually a good idea if you try it. Hit the opponent in the face as much as possible.
"There's no secret, there's no rocket science to boxing,"said Fury. "A lot of these fighters try to make it technical and downloading data bull**** - I never heard such b****** in my life. It's two men fighting, punching each other in the face and body for twelve rounds or less.
"It's no rocket science to it. You got to train right, get to bed early. Drink plenty of water and get stuck in best way you can."