Tony Bellew is predicting that he will make David Haye quit in "disgrace" when he steps into the ring with the former world heavyweight champion on Saturday.
Haye weighed in almost a stone heavier than his fellow Englishman on Friday before the pair continued their war of words.
WBC cruiserweight belt holder Bellew tipped the scales at 15st, three pounds and eight ounces, with Haye just over 16st on the eve of the heavyweight fight at the O2 Arena in London.
And Liverpudlian Bellew believes he will have the staying power to silence his compatriot in emphatic fashion.
"He's shrinking; he looks smaller than me today. He looks a lot more muscular though, doesn't he, he looks absolutely fantastic." said Bellew.
"He's sorted his hair out, physically he looks very, very good. I thought he would be lighter. I am over the moon at his weight, he's going to gas. I am not going to be easy to be hit in those first four [rounds]. He's going to gas.
"He's pleasing on the eye, I think I quite fancy him, but I'm going to knock 10 bells out of him and I can't wait to get my hands on him."
Bellew added: "He's laying the seeds for an excuse. He's going to quit, that's my dream scenario.
"After five or six rounds. David Haye quits and makes a disgrace of himself."
But Haye warned that Bellew will not be able to live with his power.
"He's employed a few sparring partners, but none of them punch like I do. It's a whole different sport to what he's used to and he's unprepared for it." said the Londoner.
"I look like I used to at cruiserweight but I'm a stone and a half bigger. I've put on some good, healthy, usable muscle. A lot of people just bulk up, he's obviously just eaten a bunch of pies to get up to the heavyweight limit. I haven't, I've done it very slowly and methodically.
"You can drag nine out of 10 men out of the audience who will have a better physique than he does. The only reason he has that physique is because he doesn't pay the price, he's not a professional athlete."