21 aces and only 4 breakpoints in an hour and 46 minutes. That was the match between John Isner and Stefanos Tsitsipas which the Greek managed to win in two tie-breaks. Next, he will take on Reilly Opelka who has a similar style to Isner's. Following his 3rd round victory, Tsitsipas said:

"It was a very difficult match. My level of focus and attention had to be there all the time," Tsitsipas said. "John is a very unpredictable player. He can be very aggressive sometimes. If you don't play with first serves, it can get quite dangerous with him, so I think being aggressive and pressing all the time was something very important today."

"I did feel very comfortable, didn't feel any nerves. Even when it came to the tie-breaks. I felt very comfortable and decisive with the tactics I wanted to follow," Tsitsipas said. "Overall it was a great performance and I think I can still improve a few things in tomorrow's match. Not putting any pressure on me, but I think I can be even more aggressive and play with higher percentages."

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