Tennis and golf seem so much different than almost all other sports. Baseball is the most intense with a pitcher throwing a ball towards you at over 100mph. NFL quarterbacks have to go to a silent count to snap the ball because they can’t hear the call. Basketball, Soccer (futball), Rugby, NFL, hockey, etc… all allow as much noise as you can make. Most teams will also encourage noise when the opponent has the ball. Why is tennis and golf an outlier?
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Fans are supposed to be quiet at football games when their offensive is starting a drive, and loud when their defense is up. Not that everyone follows that rule (but they should!)
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