By Chris LaBate

British challenger Dereck Chisora (15-2, 9 KOs) may have been quiet for the last week or so, but now he is getting warmed up. Chisora lashed out at WBC heavyweight champion Vitali Klitschko, attacking his record and physical abilities. Chisora, who faces Klitschko (43-2, 40 KOs) on February 18th in Munich, says the 40-year-old champion is no longer the same fighter and because of that he is forced to fight opponents who don't have a chance to win.

"I'm a nice person, but this is the fighting game and I'm coming to beat him up. I can deal with that style. That's the best style for me. His trainer knows me very well. I think [Klitschko] lost his mojo. [Klitschko] is not as good as he was before. He fights these American has-beens and cruiserweights and now he is fighting a real heavyweight," Chisora said.