Novak Djokovic responds to boos as Jannik Sinner to face Alexander Zverev in Australian Open final - live
Novak Djokovic dramatically retired from his Australian Open semi-final against Alexander Zverev after being unable to play ...
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Where to watch Australian Open for free: Live stream Djokovic, Sinner, Sabalenka, and Swiatek anywhere
The quarterfinals played out at the beginning of the week. Alexander Zverev, Novak Djokovic, Ben Shelton, and Jannik Sinner have advanced to the men's semifinals, which will kick off on Thursday.