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BEIJING, CHINA - SEPTEMBER 29: Katsumi Nakamura of Japan celebrates winning the Men's 100m Freestyle final at the National Aquatics Centre during day one of 2015 FINA World Cup Beijing on September 29, 2015 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - SEPTEMBER 29:  Katsumi Nakamura of Japan celebrates winning the Men's 100m Freestyle final at the National Aquatics Centre during day one of 2015 FINA World Cup Beijing on September 29, 2015 in Beijing, China.  (Photo by Lintao Zhang/Getty Images)