Heartbreaking defeat: 'My body shut down', says Tiafoe after US Open heartbreak

Frances Tiafoe attributed his five-set US Open semi-final loss to Taylor Fritz to cramping after his body "shut down" in the final set. Tiafoe, who led twice in the match, was broken three times in the last set, losing 6-1 after suffering from physical issues, despite feeling he had been the better player.