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LONDON, ENGLAND - JUNE 24: John Isner of USA (L) poses after winning on the third day of his first round match against Nicolas Mahut of France (C) with Chair Umpire Mohamed Lahyani on Day Four of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 24, 2010 in London, England. The match is the longest in Grand Slam history. (Photo by Hamish Blair/Getty Images)

LONDON, ENGLAND - JUNE 24:  John Isner of USA (L) poses after winning on the third day of his first round match against Nicolas Mahut of France (C) with Chair Umpire Mohamed Lahyani on Day Four of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 24, 2010 in London, England. The match is the longest in Grand Slam history.  (Photo by Hamish Blair/Getty Images)