It was classic Novak. He executed the same playbook. Appear to be hampered by injury, call a medical time out, drop a set and give your opponent something to lose, and then return to crush the opponent.
Alcaraz has never beaten Novak on the hardcourt surface.
I can't see Alex De Minaur's potato forehand troubling Sinner. Alex just doesn't have the tools to beat him.
Sinner should be very concerned that Novak feels he has a point to prove against the Australian media.