You've heard it before. You must brush up the back of the ball on your groundstrokes in order to create spin and therefore control. Whether beginner or advanced, learning how to effectively accelerate from low to high will be a plus for your game. Check out these simple tips, and feel free to leave questions in the comment section below. Here's some great low to high from Novak Djokovic: Blair DiSesa Henley is a USPTA Certified (P1) tennis professional with over
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