It's lonely at the top
Andy Roddick is the future of American tennis on and off the court.
He returns to the U.S. Open as its defending champion and is ranked No. 2 in the world. He'll turn 22 on Monday and already he has achieved pop culture status -- which means Web sites and magazines talk about his hair and his girlfriend, who last year was singer/actress Mandy Moore.
With Pete Sampras gone and Andre Agassi readying for retirement, Roddick is clearly the successor to the American tennis throne.
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