Chisora to fight Usyk on 23 May in London

Britain’s Dereck Chisora will fight unbeaten Ukrainian Oleksandr Usyk in a heavyweight bout on 23 May at the O2 in London.
The fight had been expected to take place in March but was put back after Usyk suffered an injury in training.
Chisora, 36, has not fought since a fourth-round stoppage victory over compatriot David Price in October.
Usyk, 33, is a former undisputed cruiserweight champion who stepped up to heavyweight last year.
He comfortably won his heavyweight debut in October by stopping Chazz Witherspoon in the seventh round, extending his career record to 17 wins and no defeats.