Alexander Zverev has put his grand slam final appearance down to his fitness coach Jez Green after his semifinal comeback win over Pablo Carrena Busta.

Zverev was trailing by two sets but rallied for an incredible victory, winning 3-6, 2-6, 6-3, 6-4, 6-3.

“At 3-6, 0-5, I was looking at the scoreboard, I thought I’ve got to do something,” Alexander Zverev said.

“I’m lucky to be through. I feel OK, been working with Jez Green the past couple of years and he’s done quite a good job with me.”

Green is Andy Murray’s former conditioner.

The German said he though he was gone at two sets down. “I couldn’t believe it,” he said.

“I was supposed to be the favourite. I knew I had to come up with better tennis. But I’m through to my first grand slam final and that’s all that matters.

“Still one to go for me. I wasn’t winning many second serve points and had to be more aggressive. Can’t wait for the final.”