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RIO DE JANEIRO, BRAZIL - AUGUST 12: Florin Mergea and Horia Tecau of Romania return a shot against Rafael Nadal and Marc Lopez of Spain during the Men's Doubles Gold medal match on Day 7 of the Rio 2016 Olympic Games at the Olympic Tennis Centre on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Mark Kolbe/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 12: Florin Mergea and Horia Tecau of Romania return a shot against Rafael Nadal and Marc Lopez of Spain during the Men's Doubles Gold medal match on Day 7 of the Rio 2016 Olympic Games at the Olympic Tennis Centre on August 12, 2016 in Rio de Janeiro, Brazil.  (Photo by Mark Kolbe/Getty Images)