Novak Djokovic pulled out of his match against Alex Zverev after losing the first set 7-6(5) on Friday which allowed the German to advance to his first Australian Open final. The Serb heavily taped his upper left leg again due to an injury he sustained during the quarter-finals. Zverev advances to face the victor between Jannik Sinner and Ben Shelton in Sunday's final match while pursuing his debut Grand Slam title. Djokovic still needs a record 25th major title after his semi-final defeat