I went to the us open last summer without knowing in advance who I was seeing. The very first serve from Ben Shelton and I was completely mesmerized-- An incredible backbend with rotation, then a spiral in the other direction into a jeté. I couldn't get enough of it, so I just kept filming it over and over. Watching it on the replay, I still can't get enough.
Halfway through the game he started massaging his shoulder, then two thirds of the way through he surrendered the game to his opponent. Way to preserve a good thing.
*Watch on full screen with headphones