Tennis-Djokovic retires injured to put Zverev in Australian Open final
Novak Djokovic retired injured after losing the first set 7-6(5) against Alex Zverev on Friday to put the German through to his first Australian Open final. Zverev will meet the winner of the Jannik Sinner and Ben Shelton match in Sunday's decider as he bids for his first Grand Slam title.