Lukasz Kubot Pictures

  • LONDON, ENGLAND - NOVEMBER 15: Lukasz Kubot of Poland and Marcelo Melo of Brazil celebrate victoy during the doubles match against Mike Bryan of The United States and Bob Bryan of The United States on day four of the 2017 Nitto ATP World Tour Finals at O2 Arena on November 15, 2017 in London, England. (Photo by Clive Brunskill/Getty Images)