David Haye has aimed a shot at Tyson Fury ahead of their heavyweight clash on September 28 by insisting that his sparring partners would be able to beat the Mancunian.
Fury will put his unbeaten record the line against former WBA world champion Haye in Manchester in what is one of the most anticipated grudge matches in British boxing.
Haye, who has 26 wins and two losses on his record, will go into the clash as a favourite despite giving up six inches in height and seven inches in reach to his 25-year-old opponent.
But the 32-year-old, who defeated Russian giant Nikolay Valuev to claim the WBA belt, is confident his stable of sparring partners will have him more than ready to face Fury.
"I have no doubt whatsoever that the guys brought over for me to spar would do a number on Fury in a fight," he said.
"That's what has made this camp so great. Rather than bringing over the typical sparring partners, guys used to just taking punishment, I have brought over a load of top-ten heavyweights, some of them unbeaten, with lots of ambition and pride.
"I have also brought over big, big punchers."
Among Haye's sparring partners are unbeaten American Deontay Wilder and Pole Mariusz Wach, who lost on points to current WBA, IBF and WBO king Wladimir Klitschko just last year.
Ukrainian Alexander Dimitrenko and Sheffield's Richard Towers have also been part of the Londoner's camp and Haye believes any one of them would give Fury major problems.
"Wilder punches about as hard as anybody in the division right now, and he'd be nailed-on to spark Fury in a fight," continued Haye. "One shot from Deontay would do the trick.
"Wach is one of the toughest men I've ever shared a ring with. You couldn't even budge him with a baseball bat. Some nights I've wanted to try.
"Dimitrenko is a better schooled version of Fury, and Towers has been great for me, because he brings a lot of unorthodox moves to the table and has a long, fast and accurate jab.
"Each of them would make Fury look silly in a fight. Wilder would spark him, Wach would maul him from pillar to post, and Towers and Dimitrenko would outbox him round after round.
"Now imagine what I'm going to do with him."