Oleksandr Usyk's team admitted that Derek Chisora could have received a sensational upset win, says David Haye

Oleksandr Usyk's team admitted that Derek Chisora could have received a sensational win over the pound-for-pound star, says the British contender's manager David Haye. Chisora troubled Usyk with his constant aggression last October, but the Ukrainian triumphed by unanimous decision with two narrow scores of 115-113 and a third wider margin of 117-112.