ATP World Tour Finals - Day One
LONDON, ENGLAND - NOVEMBER 22: Mark Knowles of The Bahamas returns the ball playing with Mahesh Bhupathi of India during the men's doubles first round match against Frantisek Cermak of Czech Republic and Michal Mertinak of Slovakia during the Barclays ATP World Tour Finals at the O2 Arena on November 22, 2009 in London, England. (Photo by Clive Brunskill/Getty Images)
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