MELBOURNE, Australia — Rafael Nadal is within one victory of a men’s record 21st Grand Slam singles title.

He’ll have to beat second-seeded Daniil Medvedev in the Australian Open final on Sunday to make history. And Medvedev is chasing a piece of history of his own after beating Stefanos Tsitispas 7-6 (5), 4-6, 6-4, 6-1.The U.S. Open champion is aiming to be the first man in the Open era to win his second Grand Slam title at the next major tournament.