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,

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.

On Sunday, Alexander Zverev will chase his first Major title against Jannik Sinner in the Australian Open final. The German is through to his third Major final, hoping to lift his first notable trophy. Novak Djokovic backed Zverev to defeat Sinner and join tennis immortals!

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

Jannik Sinner of Italy holds the Norman Brookes Challenge Cup aloft after defeating Alexander Zverev of Germany in the men’s singles final at the Australian Open tennis championship in Melbourne, Australia,

Jannik Sinner has etched his name in tennis history with a stunning Australian Open victory, defeating Alexander Zverev 6-3, 7-6(4), 6-3 in the final. The Italian world number one secured his third Grand Slam title,

Novak Djokovic’s remarkable story at the Australian Open may have had the most unfortunate conclusion as he limped out of the tournament in his semi-final against Alexander Zverev last week – but his legacy looks set to be secured for eternity.

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