SEOUL, SOUTH KOREA - OCTOBER 02: Novak Djokovic of Serbia returns a ball to Andy Roddick of the United States during the exhibition match between Novak Djokovic and Andy Roddick on October 2, 2010 in... more 
SEOUL, SOUTH KOREA - OCTOBER 02: Novak Djokovic of Serbia returns a ball to Andy Roddick of the United States during the exhibition match between Novak Djokovic and Andy Roddick on October 2, 2010 in Seoul, South Korea. Djokovic went on to win 6-2, 6-4. (Photo by Chung Sung-Jun/Getty Images) less 
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Getty Images | Photo By Chung Sung-Jun / Getty Images
Tue, Oct 5, 2010 7:19 AM EDT