common mistake beginning players make is stopping their swing
at the ball. Please don't do this! Make sure you have a long
finish on your ground strokes, this usually means over
your opposite shoulder. For example on your forehand if you
were wearing a watch on your right wrist you would be able to
hear that watch ticking in your left ear when your swing was
finished. Of course most watches don't tick anymore! Following
through will instantly enhance your tennis game!