PARIS, FRANCE - MAY 26: (L-R) Vasek Pospisil of Canada and Jack Sock of the United States in action during the Men's Doubles first round match against Thomasz Bellucci of Brazil and Martin Klizan of Slovakia on day five of the 2016 French Open at Roland Garros on May 26, 2016 in Paris, France. (Photo by Julian Finney/Getty Images)
