Derek Chisora has boldly predicted that Anthony Joshua will knock out both Tyson Fury and Oleksandr Usyk – if he fights the Ukrainian again.

Heavyweight veteran Chisora is approaching the end of his own career in which he’s shared the ring with almost every top heavyweight around.

AJ and Chisora have been gymmates and good friends for yearsCredit: Instagram – Derek Chisora

The 40-year-old now has 48 fights under his belt and intends to make it a round 50 before quitting boxing next year.

In his career, he’s taken on both Fury and Usyk, and also sparred with AJ on many occasions as they originated from the same amateur gym – Finchley ABC.

He is good friends with all three, but has the closest bond with Joshua and has now seen enough to believe his old pal can surge to end his career in magnificent fashion.

The 34-year-old is already a two-time unified heavyweight world champion, but lost his belts in defeats to Andy Ruiz and Oleksandr Usyk.

While he avenged the loss to the Mexican-American, Joshua was unable to overcome the Ukrainian and succumbed to defeat against him twice.

Now though, he’s rebuilt with four straight wins and looked particularly impressive in his last two performances under new trainer in Ben Davison.

On this evidence, Chisora has predicted that Joshua can stop both Fury and Usyk to reign as undisputed heavyweight king in 2025.

“AJ will knock Fury out in six rounds and he will stop Usyk in round four. I’m telling you now,” Chisora said on talkSPORT talkBOXING.

“Because now he’s got the right dancing partner, his trainer.

“That guy hasn’t stopped watching the two tapes of him fighting Usyk.

Usyk beat Fury to become undisputed heavyweight king in May, and the pair will now rematch on December 21Credit: Getty

Joshua vs Dubois comes first on September 21Credit: Mark Robinson/Matchroom

“Because he wants that fight badly, he wants the rematch. He wants Usyk to win the fight with Fury.”

Asked if AJ will become undisputed, Chisora replied “Yes…

“I think the changes he’s made are Ben Davison and the people around him round him now.

“They’re listening to him, they’re understanding. They’ve gelled now.

“He was not knocking out his sparring partners and now he’s knocking them out. Because of Ben Davison.”

First, Joshua must beat Daniel Dubois on September 21 – with Dubois’ IBF heavyweight world title at stake.

If he picks up this belt and becomes a three-time heavyweight world champion, then the path will open up to undisputed in 2025.

Chisora concluded: “The fight with Dubois, everybody thinks it’s gonna be a walk in the park, but I don’t think so.

“Because Daniel’s changed and AJ knows that. It’s gonna be a good fight.

“I don’t see it as a one-sided fight, no I don’t.

“I think it ends in six. [AJ] has to stop him [inside six] because Daniel’s easy to hit.”