Today during practice, I became aware as to why a tennis ball is fuzzy. The fuzz is a product of the felt on the outside of the ball. This is done to produce drag on the ball to slow it down. With the newest technology in tennis rackets, professional tennis players are hitting the ball at great speeds. The fastest recorded serve is 251km/hour! The felt acts as a dampener when the ball bounces so that the ball doesn't bounce too high or too quick. Without the felt, the game would probably be too fast for professional tennis players. When a ball looses the fuzz on it, it becomes more bald, and starts to bounce quicker and higher, making it more difficult to control.
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