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).

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

There’s all sorts of ways beyond merely the score to measure just how dominant Jannik Sinner was while outplaying and frustrating Alexander Zverev during the 6-3, 7-6 (4), 6-3 victory Sunday that

Novak Djokovic shared a heartfelt message to Alexander Zverev after the second seed lost in straight sets against Jannik Sinner in the Australian Open final on Sunday at the Rod Laver Arena. Sinner won 6-3,

Dominant Jannik Sinner wins Australian Open again as Alexander Zverev ‘not good enough’ - live - Sinner won his second Australian Open with a 6-3 7-6 (4) 6-3 victory to deny Zverev his grand slam titl