Fritz: "Things can change very quickly against someone like Zverev".

Taylor Fritz had the nerves to beat Alexander Zverev in the third set tie-break this Saturday in the semi-finals of the Masters (ATP Finals) in Turin.

The American clearly dominated the early stages of the match, before having to resist the comeback of the world No.2. He held his nerve, but it was no mean feat, as he explained after the match.

Taylor Fritz: "It was tough in the second and third sets. I felt like I'd played an almost perfect first set. Everything was going perfectly.

But things can change very quickly when you're playing against someone like Sasha. All it takes is one bad service game. He played a good return game.

He broke me and I had a few chances to come back. But he's a very good server. And the set was over.

Then I found myself in some difficult situations in the third. I had the impression that in the third set, we both started to control each other's serve more. There were more balls in play.

In the end, the points were huge. And when I tried to be aggressive, it didn't seem to be working. So I said to myself at the end that I had to fight, be solid and try to take care of my serve as best I could, while trying not to give anything away from the baseline."