Originally Posted by arche3
Have you guys seen the video of Djokovic teaching how to serve? He says its all in the wrist snap. High speed video of top pros show its really not about snapping the wrist. But that is what djokos coach used to elicit a certain performance from him. So djoko thinks its because he snaps his wrists.
Good point, it is this video, towards the end:
It looks like he truly believes that he actually snaps his wrist, while in practice he clearly pronates, not snaps. Regardless, somebody apparently used "wrist snapping" as a way to teach him how to improve his serve.