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

LONDON, ENGLAND - NOVEMBER 16: Marcelo Melo of Brazil and Ivan Dodig of Croatia in action in the doubles final match against Bob Bryan of the United States and Mike Bryan of the United States on day eight of the Barclays ATP World Tour Finals at O2 Arena on November 16, 2014 in London, England. (Photo by Julian Finney/Getty Images)

Getty Images Sport Julian Finney