& L. L6 k# V4 h- N$ |# ?First and foremost, you've gotta have your legs there. With tennis, you do a 6 z( |" s- t9 D k( ?9 j+ p: H6 Ilot of running. We do a lot of lunge-type exercises. I've had a little bit of* a; ^/ F, |- U$ E$ w4 H
trouble with my knees the past year, so almost every day, I do stuff where I d# i& F1 K% W) l% ^4 I
put my heels up on an incline and put as much weight as I can on my back and 9 B7 O9 q' Y& f# Ado some squats. Next thing, my right arm is the next most important for me. I% e+ @9 C) [# e7 v+ Q, b9 Q
do a lot of rotator cuff exercises [for my serve]. After all that, we'll2 N* Q' T+ i, o) Z) ^2 @
spend 15 minutes or so doing abs, core, and med-ball work.