Anthony Joshua has been told to copy Wladimir Klitschko by a sparring partner as he prepares for his rematch with Oleksandr Usyk.

The British superstar is on a mission to reclaim his former belts from the Ukrainian at the end of the month.

Joshua, 32, challenges Usyk, 35, for the WBA, WBO, IBF and IBO titles in a rematch in Saudi Arabia on August 20.

He faces the seemingly impossible task of having to become the first person to beat Usyk in a professional boxing ring.

ALL THE INFO: Anthony Joshua vs Oleksandr Usyk 2: Date, Card, UK Start Time, Ring Walks, Tickets, Live Stream, Odds and More

But Olympic bronze medallist Frazer Clarke believes Joshua has every chance of beating Usyk but only if he copies his former opponent Klitschko.

In his column for Sky Sports, Clarke spoke out in defence of AJ by writing: "He's under no illusions. He's going to have to be the best he's ever been to beat Usyk. I think he's going to have to be better than he's ever been.

"Better than the Wladimir Klitschko night. I feel like he has to be Klitschko-esque. That night there were ups and downs and he had to come back. He might just have to do that.

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Boxing - Oleksandr Usyk & Anthony Joshua Press Conference - London, Britain - June 29, 2022 Oleksandr Usyk and Anthony Joshua face off during the press conference Action Images via Reuters/Peter Cziborra

Anthony Joshua will rematch Oleksandr Usyk in Saudi Arabia on August 20

"He's got every chance. From what I've seen him put in on a daily and a weekly basis, he's given himself every chance and that's all you can ask from a fighter in a camp. If you give everything you've got to give, with the experience and the skill he's already got, he's given himself every chance.

"There's a lot of people out there talking about Usyk being so good and this and that. He is very good. There's no doubt.

"He's a great fighter. But he's a human. If AJ hits him on the chin more than once, he's only human, he goes down, he probably doesn't get back up.

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"If Joshua gets a sustained combination on anyone in the world, boxer or not a boxer, possibly even animal or tree, he goes through them.

"I've sparred hundreds of rounds with him. I think of this thing of 'he's gun shy' - he wasn't gun shy when I've seen him in sparring, believe me.

"I feel like he's a nice guy. I think someone had to pull the bad guy out of him. I think Robert Garcia was good to do that.

"He pulled out the not give a [stuff] about anyone apart from winning this fight. He's brought it out of him.

"This could be Britain's greatest night of heavyweight boxing. I feel like everyone's putting him as a massive underdog and he might just get outboxed for 12 rounds. But you'd be daft to bet again him."