Despite recent setbacks and visits to the canvas, Daniel Dubois is confident of his probabilities of pulling off an upset to victory the WBA, IBF and WBO world heavyweight titles from Oleksandr Usyk on Saturday (5 p.m. ET on ESPN+). Dubois (19-1, 18 KOs), from Greenwich in south London, has got this far despite looking vulnerable in recent fights and suffering a serious knee injury in his last fight. Usyk (20-0-0, 13 KOs), 36, from Ukraine, is widely expected to retain his belts at the Stadion Wroclaw in Wroclaw, Poland, but what is it that is fuellng Dubois’ confidence? And […]