Usyk began preparations for the second fight against Tyson Fury.

Boxer Oleksandr Usyk announced the start of preparations for the rematch with Tyson Fury. Usyk announced this on his Instagram.

The Ukrainian published a video on Instagram showing him undergoing a physiological test.

Oleksandr was running on a treadmill in a special mask with sensors that measure his parameters.

Usyk called Fury his "fat friend" and hopes that he will be in good shape.

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A post shared by Usyk. The Cat. Oleksandr (@usykaa)

The first match between the boxers took place on May 18. Usyk defeated Fury by a split decision, handing him the first loss of his career. However, later Usyk handed over the IBF heavyweight title, thus losing the title of "undisputed world champion".

According to the contract, the boxers cannot have other matches before the rematch. Thus, this fight will be the next one for both boxers.