Tyson Fury has denied faking his body transformation after fans online took issue with his pants.
The Gypsy King is currently recovering after sustaining a cut above his eye prior to his showdown with Oleksandr Usyk.
Fury had been due to go up against Usyk on February 17 in Saudi Arabia.
However, after being caught by Agron Smakici in sparring, the duo will now go up against each other on May 18 instead.
Boxing: Tyson Fury has clarified pants controversy ahead of his huge fight with Oleksandr Usyk
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After the bout was postponed, Fury took to social media to show images of himself looking in incredible shape.
The boxing star looks worlds away from the heavier figure that laboured to victory over Francis Ngannou back in October.
However, some fans scrutinised the picture after looking closely at the blue underwear Fury was wearing.
Eagle-eyed supporters claimed the Gypsy King was wearing the same briefs he had on during a 2021 snap with former boxing star Dmitriy Salita.
Fury has, though, now hit back and set the record straight.
"The picture of me is not an old picture, it's a new picture," he told the MMA Hour.
"I'm in fantastic shape, I’ve been training hard.
"I've been on a great diet and I was ready to rock and roll."
Fury was widely criticised for the way he performed during his narrow win over Ngannou four months ago.
But the heavyweight star has been hard at work in the gym over the past few weeks as he looks to put Usyk to the sword.
Moments after it was confirmed Fury and Usyk's fight would be pushed back, the Gypsy King fired a warning to Usyk.
And he also made it clear he had no plans to retire any time soon, despite entering the twilight years of his career.
"We keep moving forward and now we have a new date," he said.
"Usyk's crying his eyes out. 'Tyson should retire, Tyson wants to retire.'
"No retirement here, motherf****r. You're getting knocked out. Knocked spark out!
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Boxing: Tyson Fury wore the same blue pants for a snap back in 2021
"May 18, the new date. Live and exclusive from Saudi Arabia, Riyadh season."
Speaking exclusively to GB News before the delay, meanwhile, Fury's father John said his son would win the fight in eight rounds.
"Obviously it would be an unbelievable achievement," he said when asked what it would mean to the Fury family if the Gypsy King became undisputed heavyweight champion of the world.
"For anybody to become undisputed, I think the last one from this country was Lennox Lewis and it doesn't get any bigger or any better.
"So yeah, there'd be jubilation all round. He's gotta' win first, there's a bit of work to be done.
"I'm sure, if he's prepared right, I don't think or see anything that Usyk has that will trouble him.
Boxing: Tyson Fury and Oleksandr Usyk will now face each other on May 18
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"He's been in with far bigger, more powerful men than him. Probably not as good as boxers, but Tyson's a good boxer himself.
"Different styles make fights but I just think Tyson's every bit as talented in the boxing department but he's bigger, stronger, determined, he's got heart and you've got to nail him to the canvas to win.
"He's been getting up every time from these big, gigantic men's punches.
"So in the power department, I don't think Usyk is going to bother him. When you've been hit by Ngannou and Deontay Wilder at his best, I don't think the punching power is going to affect him too much at all.
"If Tyson's done his job, the way I know it should be done, it should be a one-horse race.
"Tyson'll stop him around eight rounds."