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KAZAN, RUSSIA - JULY 29: Koji Takei #9 of Japan looks to pass against Filip Filipovic #10 of Serbia in the Men's Water Polo Preliminary Round Group D match between Serbia and Japan on day five of the 16th FINA World Championships at the Water Polo Arena on July 29, 2015 in Kazan, Russia. (Photo by Matthias Hangst/Getty Images)

KAZAN, RUSSIA - JULY 29:  Koji Takei #9 of Japan looks to pass against Filip Filipovic #10 of Serbia in the Men's Water Polo Preliminary Round Group D match between Serbia and Japan on day five of the 16th FINA World Championships at the Water Polo Arena on July 29, 2015 in Kazan, Russia.  (Photo by Matthias Hangst/Getty Images)