Former world heavyweight champion Wladimir Klitschko is willing to help Oleksandr Usyk in any way possible for his upcoming clash with Briton Derek Chisora.

Usyk, the former undisputed cruiserweight champion, moved up in weight last October when he stopped late replacement Chazz Witherspoon.

He was scheduled to face Chisora later this month in the UK, but their bout was pushed back due to the cornavirus pandemic. There is no word on the new date and location, but the fight could very well take place behind closed doors.

Klitschko and Chisora have some history.

Older brother Vitali Klistchko retained the WBC world title in 2012 with a twelve round decision over Chisora. But only moments before the contest began, Chisora spit water in the face of Wladimir when the boxers crossed paths in the ring. Wladimir didn't take the bait and he stayed composed.

While Usyk did not look overly impressive against Witherspoon, he's promised to make a far bigger statement with Chisora.

Usyk is the WBO's mandatory challenger to unified champion Anthony Joshua. A loss would cost him a very lucrative title shot.

"Oleksandr's fight with Derek Chisora will give answers to many questions. Oleksandr is ready for this fight. I always support him. I even worked for him as a sparring partner. We last sparred several months ago," Klitschko told

"Will there be sparring matches in preparation for the fight with Chisora? Anthropometrically, I do not look much like Derek. But for a warm-up I am always ready to help Oleksandr with great pleasure and absolutely free of charge."