RIO DE JANEIRO, BRAZIL - MAY 20: The Olympic Rings are unveiled at a ceremony at Madureira Park May 20, 2015 in Rio de Janeiro, Brazil. (Photo by Matthew Stockman/Getty Images)
RIO DE JANEIRO, BRAZIL - MAY 20: The Olympic Rings are unveiled at a ceremony at Madureira Park May 20, 2015 in Rio de Janeiro, Brazil. (Photo by Matthew Stockman/Getty Images)