MELBOURNE, Australia – Andy Murray was sucking in deep breaths, trying to recover from his exhausting win over Roger Federer. Pain was very much on his mind.

The U.S. Open champion defeated Federer 6-4, 6-7 (5), 6-3, 6-7 (2), 6-2 in a 4-hour Australian Open semifinal Friday night. It was Murray’s first victory against the 17-time major winner at a Grand Slam event.

But with the clock about to strike midnight, Murray was already thinking about Sunday’s final against two-time defending champion Novak Djokovic, who is on a 20-match winning streak at Melbourne Park. This will be a rematch of their U.S. Open final.