Usyk shows his training for heavyweight debut (video)

On Saturday in Chicago Oleksandr Usyk (16-0, 12 KOs) will hold his first fight in the heavyweight division as a pro. The Ukrainian, who without a fight - in recognition of his results in the lower category - was appointed as the mandatory challenger by WBO in the heavyweight division and may soon face the winner of the rematch between Anthony Joshua (22-1, 21 KOs) and Andy Ruiz Jr. (33 -1, 22 KO).

In Chicago Usyk will face Chazz Witherspoon (38-3, 29 KOs). Initially, he was supposed to face Tyrone Spong, but the latter was not able to pass a drug test.