The fifth seed recovered from two sets to one down to reach round two.

Sinner beat Daniil Medvedev in the quarter-final with a 6-2 1-6 6-1 6-4 win.

The Australian Open champion lost only three games in a rematch of the Melbourne final

Defending champion Alcaraz came from a set down to book a final berth against Daniil Medvedev.

The 22-year-old Italian followed up his victory over Novak Djokovic by claiming the trophy in dramatic fashion.