respectively disagree w. @wright. racquetball can help your reflexes and hand/eye stuff and conditioning, and your first step to the ball, which is all good for tennis. you gotta hit the ball flat or slice stroke so no way you could play w. a western forehand. if you just use your tennis strokes out there, but flatten the stroke out, its not gonna kill your tennis game. it may improve it. granted, that isnt the best way to play rball, but i think of it as a reasonable form of x training..but then again, i try and play all the racquet sports. if you arent good at tennis, give the rball a try..you may like it even better because you arent always picking up balls. ed