A nervous Eddie Hearn expects a mentally 'draining' fight for Anthony Joshua when he takes on Oleksandr Usyk in their highly-anticipated showdown at Tottenham Hotspur Stadium.
Joshua has height and reach advantages and will almost certainly be heavier when he defends his WBA, IBF and WBO heavyweight titles this weekend, but Hearn is among those to anticipate the toughest test of the Briton's career.
That is because of a breathtaking skill set possessed by the Ukrainian who won gold at London 2012 the day before Joshua in the division below, including deft footwork, blurring hand speed and stamina few others can match.