Tyson Fury has “guaranteed” to knock out former world cruiserweight champion Steve Cunningham when the pair meet in New York on April 20.
The outspoken Morecambe fighter also slammed heavyweight kings the Klitschkos at a press conference to promote his Madison Square Garden clash with Cunningham.
Fury, undefeated in his 20 bouts, said: “There’s not another heavyweight on the planet who wants to step in the ring with me and that’s why I’m giving Steve respect.
“Wladimir Klitschko doesn’t want to fight me and I’m not even going to talk about Vitali because he’s a pensioner. I don’t want to fight him.”
The Irish heavyweight champion has vowed to make a statement on his American debut which will be broadcast on NBC across the pond and Channel 5 in the UK.
The 24-year-old said: “This guy has got no chance at all.
“Let’s talk about talent, size, whatever you want. I’m the best fighter on the planet. There’s not a man born from his mother who can beat Tyson Fury.
“Steve Cunningham’s in big trouble. Come April 20 this guy is getting knocked spark out. Guaranteed, 100 per cent.
“I haven’t come here to play games and talk nonsense I’m here to fight and I hope you’re here to fight too.”
But 36-year-old Cunningham, who has five defeats on his 30-fight record, said Fury only had an unblemished record due to his 6ft9 frame and wasn’t in the same league as the Klitschkos.
The Philadelphia-born fighter said: “The guys who talk a lot are chumps.
“That’s why I’m not going to talk. He can talk all he wants but that’s not going to help him on April 20.
“The only reason that this dude is winning fights is because he’s big.
“Shrink him down to 6ft2 and 6ft3 or 6ft4 and he’s garbage.
“One thing I can say about the Klitschko brothers, and I’ve been in camp with Wladimir, is they’re big, they work hard, they’re talented and they’re skilful.
“If they were a normal size they would still be champions.”
The clash will determine the number two ranking in IBF with one more victory required to become the mandatory challenger for Wladimir’s title.
Fury is currently at camp with trainer and uncle Peter Fury and cousin Hughie Fury in Quebec, Canada in preparation for the biggest night of his career.
The Morecambe man’s last outing saw him dominate former world title challenger Kevin Johnson in Belfast in December on his way to a unanimous points victory.