Do you want a photo with the action as the main focus or the the perfect position of the ball? Maybe the person is the only thing that matters. To get all three takes patience, practice and timing. Tennis is one of those sports that you may think would be easy to shoot. The weather is nice, plenty of sun and the movements can be somewhat timed because after all the ball bounces back and forth. Well you can have too much sun causing shutter speeds to exceed the F stop you may want giving too much dept of field. That can be fixed with neutral density filters to block light. You may have to shoot through the fence. You have to place your lens against the fence and line the hole perfectly trying to center the hole as best you can. This is another reason to shoot a wide open F stop to blur the what fence creeps into the shot. This will also limit the movement of the camera and shorten the view of the field. Sometimes the layout of the field presents limited access so you stand around waiting for the people to shift to the other side. It can also make camera settings difficult when shooting into the sun if that is your only angle. Catching the ball is only part of a picture. Showing the intensity of the player even if the ball is not on the racket may mean more to the person viewing the photo than the person taking the photo. Try to have the ball somewhere in the frame. For better photos scout the different locations the game is played. One of the other fields may present better opportunity. The below photo was shot at an away game which had multiple entrances on both sides of play. I could open the gate and have more movement of the camera to follow the player. This was the only time I had a ball ricochet in the lens.
Fast frame shooting will be a big plus here. Never below 1/400 shutter speed and the faster the better.