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,

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

Novak Djokovic wrote a heartfelt message to Alexander Zverev on Instagram after his injury retirement in the Australian Open.

Alexander Zverev has said that Jannik Sinner is "very similar" to Novak Djokovic after he was defeated by the Italian in the Australian Open final.

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!

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,

Novak Djokovic shut down his doubters who had argued that the 10-time Australian Open champion had faked his injury in the quarter-final and semi-final in the tournament. Djokovic posted an MRI of his left hamstring and asked the doubters to have a look at it.