He's overcome Stefanos Tsitsipas in straight sets.
Russia's Daniil Medvedev will face Novak Djokovic in the final of the men's Australian Open.
He's beaten Stefanos Tsitsipas 6-4, 6-2, 7-5 in Melbourne in the last few minutes.
The Russian will have 48 hours rest before he plays Djokovic in the decider.
Meanwhile Novak Djokovic says Serena Williams will be regarded as one of the greatest athletes of all-time - whether she wins a record-equaling 24th Grand Slam tennis title or not.
Her hopes of doing it at the Australian Open came to an end with a straight sets defeat to Naomi Osaka in the semi-finals.
But Djokovic, who is through to Sunday's men's final, believes the 39-year-old isn't done yet: