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Germany's Dustin Brown returns to Serbia's Viktor Troicki during their men's singles third round match on day six of the 2015 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on July 4, 2015. RESTRICTED TO EDITORIAL USE -- AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

Germany's Dustin Brown returns to Serbia's Viktor Troicki during their men's singles third round match on day six of the 2015 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on July 4, 2015.   RESTRICTED TO EDITORIAL USE  -- AFP PHOTO / LEON NEAL        (Photo credit should read LEON NEAL/AFP/Getty Images)