The Role Of Pronation On The Serve (And The Sampras Secret)THE ROLE OF PRONATION ON THE SERVE (AND THE SAMPRAS SECRET). Former top 100 ATP Pro Jeff Salzenstein demystifies the role of pronation on the serve, and explains how it can help your serve improve. In this video, you will learn how your serving grip actually effects your ability to pronate your forearm on the serve, and he'll explain the pros and cons of using different grips. An finally, Salzenstein reveals what he call "The Sampras Secret", a move he credits for Pistol Pete's dominant serve when he was at the top of the game.
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