Many people do not realize that just because a sport seems easy on television it is not always that easy. A good example of this is when you look at someone playing tennis. Tennis looks like a sport that is relatively simple. You hit a ball back and forth over net that is no more than 3 feet off the ground. However it actually get out there and play the game is a different story. Sometimes novices will attempt to emulate movements that they see on the television. The result is that they enjoy themselves often walking away with mild to severe knee pain.