Dubois completely transformed his reputation by evolving into something more akin to a cyborg destroyer.

The victory, sealed with a crunching left hook to Dubois’ jaw, made Usyk the undisputed world heavyweight champion for a second time.

The Ukrainian dropped Dubois twice in the fifth — the second time with a lunging left cross.

Dubois and his team have insisted the referee's call was wrong and that they were thus cheated out of a pivotal moment in a huge fight.