Spectators booed an injured Novak Djokovic as he left the court in Rod Laver Arena after quitting one set into his Australian Open semifinal against Alexander Zverev on Friday. Dealing with a what he said was a torn muscle,

Alexander Zverev said he felt ready to challenge for a long-awaited Grand Slam title at the Australian Open after being spared a heavy workout in the semi-finals due to Novak Djokovic's retirement. Second seed Zverev advanced to his third Grand Slam final,

Novak Djokovic is out of the Australian Open in stunning fashion. The 24-time slam champion medically retired immediately after dropping the first set of his semifinal match against No. 2 Alexander Zverev in a tiebreak 7-6 (5).