Oleksandr Usyk vs Chazz Witherspoon

Usyk knocked out Bellew last year to defend his undisputed cruiserweight title and, on Saturday night at 2am live on Sky Sports Action, debuts as a heavyweight against Chazz Witherspoon. Bellew believes Usyk can achieve his goal of becoming world heavyweight champion if he targets WBC holder Deontay Wilder.

• Oleksandr UsykCast
• Chazz WitherspoonCast