One in five Americans follow professional tennis

With the U.S. Open underway in Flushing Meadows in New York City, a CBS News poll finds that about one in five Americans pays attention to what's going on in professional tennis. 

That percentage is lower than it was at the height of the sport's popularity in the U.S. during the early 1980s. Back in 1983, when Americans Jimmy Connors and John McEnroe vied for the number one position in men's tennis, a CBS News poll found that more than one in three Americans paid attention to professional tennis.