Nick Kyrgios is widely accepted as one of the best servers in recent memory and Patrick Mouratoglou broke down why.
Kyrgios is excellent on grass for many reasons but a big part of that is his serve. Big servers have traditionally done very well on grass and Kyrgios is no exception. Just recently he demonstrated it by getting to the Wimbledon final. The year before it was Matteo Berrettini, another player with a superb serve. Speaking about the Australian, noted coach Patrick Mouratoglou broke down the serve of Kyrgios:
"I think he's completely unpredictable. He can serve any zone and he has always the same toss. Always the same. He's hitting the ball almost on its way up which is very rare in today's game. The rhythm is always the same. The ability to be impossible to read, the serve - is a big asset. That was the asset of Pete Sampras also."
Mouratoglou continued:
"All the players were saying its impossible to see where the ball is going because the toss is always the same. And at the last moment, he decides to go this way or this way. So, impossible to see it and I think he's disguising the serve extremely well. The fact that his hand is so loose gives him so much power like for a guy of his height, he's serving huge, without making effort. You can see that his serve is effortless. Its just rhythm which is the best."
WAnd more:
"He has power because his rhythm is great and if you look at his hand, his hand is completely free so he has an incredible whip effect on the serve, and I think he's very flexible also so he's able to find the short zone," he explained. "Short cross here. Which is the one that is the most difficult to find by the way. And on his second serve, he has such confidence on his serve that he can go full with a lot of success. He never thinks it's a second serve. He thinks, 'I'm gonna ace.' You can see it. When you serve with so much confidence, big difference."