Luke Campbell expects Anthony Joshua to be too 'strong' for Oleksandr Usyk in their heavyweight clash in August.
The former Commonwealth lightweight champion has fought on the undercard of multiple Joshua heavyweight main events during his successful career, and has now hung up his gloves after achieving everything he set out to do in the sport.
And 'Coolhand' has now backed his former teammate to be in a 'great fight' with Oleksandr Usyk but believes he should be 'too strong' on the night despite the Ukrainian's 'technique'.
"I think it is a great fight, Usyk is an unbelievable talent," Campbell told Mirror Fighting .
"His technique and boxing IQ is certainly up there with the best, but is he a heavyweight?

"I don't think he is quite a heavyweight to be honest, this is where Joshua has the advantage.
"Joshua has got quick hands, and is a big strong heavyweight so if he imposes his strengths I think he will win the fight.
"If he sits off it could be Usyk's night, and I can't see Usyk wanting to get involved in a big strong heavyweight like Joshua. So his tactics will mostly be to make him miss, move around and.
"Joshua has to put it on him."
The British heavyweight will defend his unified world heavyweight titles at the Tottenham Hotspur Stadium in another big sold-out main event in September, as he looks to set up an undisputed world title shot.
Campbell is no stranger to fighting against tough Ukrainian opponents as he went in the ring with Vasyl Lomachenko back in 2018 for the unified lightweight titles, but came up just short after being bravely defeated by unanimous decision.
The 33-year-old also won Olympic gold for Team GB at the 2012 London Olympic Games, and the former lightweight medalist has revealed the importance of this experience during the rest of his career.
"The Olympic gold medal was massive for me," Campbell continued.
"I was going to retire after the Olympics, as it was my dream to become Olympic champion and I successfully done it.
"I first thought well I haven't got any more so I will retire.
"It gave me a huge professional platform to turn professional, I was then on the radars for the professional promoters.
"It gave me a fantastic opportunity."
Campbell also delivered his future plans after retirement, pointing towards commentary and the opening of gyms as his ideas to remain in boxing due to his 'love' for the sport.
“I’d definitely like to keep a bit of skin in the game of boxing, I love boxing,” Campbell said.
“And I am quite knowledgeable about it, I would love to do a bit of commentary here and there.
“But aside from that, I have a gym built in the city centre called 'Coolhand Fit24' and the memberships are building very well for that, it has a bright future.
Joshua continues his heavyweight journey against Usyk on September 25, and announced his fight at the venue ahead of September's big challenge.