Daniil Medvedev won a tempestuous Australian Open semi-final against Stefanos Tsitsipas on Friday and will now face Rafael Nadal, bidding to become the all-time men’s Grand Slam leader, in the Sunday’s final. The Russian world number two reached the Australian Open decider for the second year in succession by defeating Tsitsipas 7-6(5), 4-6, 6-4, 6-1.