Eight-time winner Novak Djokovic smashed his racquet en route to a tense, four-set win over Germany’s Alexander Zverev to reach his 39th Grand Slam semi-final at the Australian Open on Tuesday.

It was a patchy performance from the world number one, who is nursing an abdominal injury and drew deeply on his mental fortitude to win 6-7 (6/8), 6-2, 6-4, 7-6 (8/6)in three hours and 30 minutes.

“With this condition (injury), I need time to warm up and actually feel like I can rotate well,” said Djokovic, who started sluggishly but finished with 23 aces and 48 winners, along with 56 unforced errors.

“I started moving better and playing better. I served extremely well and I think I had slightly more aces than him, which for me is a miracle. 

“There were a lot of nerves out there and I feel emotionally a bit drained.

“I kind of regained my focus after I broke that racquet and things started to shift to me in a positive direction.”

 

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