Barclays ATP World Tour Finals - Day Two [Getty Images]

LONDON, ENGLAND - NOVEMBER 10: Lukasz Kubot of Poland and Robert Lindstedt of Sweden in action against Bob Bryan and Mike Bryan of United States in the round robin doubles on day two of the Barclays ATP World Tour Finals at the O2 Arena on November 10, 2014 in London, England. (Photo by Clive Brunskill/Getty Images)

Getty Images Sport Clive Brunskill