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RIO DE JANEIRO, BRAZIL - AUGUST 08: Masato Sakai of Japan celebrates after the first Semifinal of the Men's 200m Butterfly on Day 3 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 8, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Rose/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 08:  Masato Sakai of Japan celebrates after the first Semifinal of the Men's 200m Butterfly on Day 3 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 8, 2016 in Rio de Janeiro, Brazil.   (Photo by Clive Rose/Getty Images)