Novak Djokovic has retired from his Australian Open semifinal against Alexander Zverev after losing the first set in a tiebreak. Djokovic missed a regulation putaway volley on top of the net down 5-6,

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).

Novak Djokovic’s quest for a record 25th grand slam title has been cut short at the Australian Open after he stunningly retired from his semifinal match due to a left leg injury.

Zverev will face defending Australian Open champion and No. 1 seed Jannik Sinner, who beat American Ben Shelton 7-6 (2), 6-2, 6-2, in Sunday's final. Zverev is pursuing his first major tournament title.

Djokovic is out of the Australian Open after retiring from his semi-final, with Zverev through to face Sinner on Sunday

Novak Djokovic's bid for 11th Australian Open title ends after a muscle tear in his left leg. He says injury happened during match vs. Carlos Alcaraz.

An injured Novak Djokovic has quit after dropping the first set of his Australian Open semifinal against Alexander Zverev.

Novak Djokovic has been forced to pull out of Serbia’s upcoming Davis Cup tie due to the injury that ended his Australian Open campaign. The 24-time major winner suffered a leg muscle tear during his quarter-final match with Carlos Alcaraz in Melbourne.

Novak Djokovic has admitted he's not sure whether his partnership with Andy Murray will continue past the Australian Open, but a leading tennis expert has explained why it might be beneficial to keep working together.