Tony Bellew has laughed off the way in which heavyweight David Haye has returned to boxing, and insists he would not be scared to fight the former cruiserweight if he drops back down to his natural division.
Both fighters are at important stages in their career, with Bellew set to fight Ilunga Makabu in a cruiserweight world title fight at Goodison Park on Sunday evening, while Haye is going in search of a first world title fight, since he lost to Wladimir Klitschko in 2011.
However, despite the Bermondsey fighter stepping up to heavyweight in 2009, Bellew has no qualms about fighting the 35-year-old if he is prepared to go back down to his original weight class. But, for now, Haye ultimately has his eyes set on a fight with Anthony Joshua.
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"I will fight anyone. Show me the cheque and I will fight them. I think I'd fight my mother if the cheque was big enough," Bellew told ESPN.
"I'm not scared of anyone. I sparred with David Haye when I was an amateur and he was established, world-rated cruiserweight on the verge of the Commonwealth title, and let me tell you I wasn't found wanting when I was sparring with anyone.
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"I'm not saying I can mix with the giants of heavyweights, because your modern-day heavyweight is a giant compared to me, like Tyson Fury, David Price, Anthony Joshua.
"But any of those little heavyweights I'd fight all day and let me tell you, I'd kick their arses."
The Scouser is looking to win a world title at the third attempt, after suffering the only two losses of his professional career against Nathan Cleverly and Adonis Stevenson in 2011 and 2013 respectively, in pursuit of a world title.
But, unlike Haye, while Bellew is still awaiting his first world title, he admits he couldn't help but laugh at the opponents the Londoner faced in his two comeback fights, and admits he can do better than the quality of fighters he has faced this year.
Neither Mark de Mori or Arnold Gjergjaj could even come close testing former world champion Haye, with both opponents stopped inside the first two rounds.
"I'll fight that b****** from Bermondsey as long if he gets down to his natural weight." said Bellew.
"He knows what his natural weight is, his real weight, because he's a cruiserweight, there are no two ways about it, then I will fight that b****** from Bermondsey any day.
"What he is doing at the moment is degrading boxing, it's sad. David's better than that and he knows it.
"I speak to David and he might not like my opinion on it, but the fact of the matter is David Haye is devaluing boxing.
"Fighting a guy [Mark De Mori] who learned to box on YouTube, you're having a laugh. That last fella [Gjergjaj] looked like Lurch from the Addams Family. Going down off a jab and looking at the referee to help you out, you've got a problem."
Bellew (26-2-1-KO16) will hope that his comments don't come back to haunt him, as he prepares to fight at the home of his beloved Everton in front of a large home crowd.
"Things are looking up [for Everton] and if I can help bring a bit of pride back after a bad season when I lift that belt on Sunday then I will do it," said Bellew. "Because when I lift that belt on Sunday it will feel like 20,000 Scousers are lifting that belt with me."
However, Makabu (19-1-KO18) is hoping to negotiate his downfall and wreck his dream of winning at the home of his football club - having lost just once, on his professional debut - with a worryingly impressive KO ratio.
Would David Haye consider a return to cruiserweight to fight Tony Bellew? Give your opinion in the comment box below.