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Mysteries of the Heavy Ball

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John Yandell
Mysteries of the Heavy Ball: Introduction
Ball Speed in Pro Tennis
Ball Spin In Pro Tennis
Ball Spin in Pro Tennis Part 2
Speed and Spin in the Serves of Pete Sampras and Greg Rusedski
Practical Serving Implications

John Yandell, David Whiteside, and Bruce Elliott
Spin Rates and Spin Axis in Elite Serving - NEW