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RIO DE JANEIRO, BRAZIL - AUGUST 11: Rafael Nadal of Spain in action during his men's singles match against Gilles Simon of France at the Rio 2016 Olympic Games at the Olympic Tennis Centre on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Salih Zeki Fazlioglu/Anadolu Agency/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 11: Rafael Nadal of Spain in action during his men's singles match against Gilles Simon of France at the Rio 2016 Olympic Games at the Olympic Tennis Centre on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Salih Zeki Fazlioglu/Anadolu Agency/Getty Images)