1st serve vs 2nd serve pronation problem | Talk Tennis
Myth Busted: Serve Pronation 2.0 - Tennis Serve Lesson | I've had ENOUGH of the misinformation and flat out wrong statements surrounding serve pronation, so it's time to set the record straight...
Supination and Pronation on the... - Top Tennis Training | Facebook
How to Practice tennis serve pronation « Tennis :: WonderHowTo
How To Pronate on Your Tennis Serve - Tennis Serve Pronation - YouTube