TOKYO, JAPAN - APRIL 10: Japan coach Norimasa Hirai (L) and multiple Olympic gold medalist breaststroke swimmer Kosuke Kitajima (R) join hands after Kitajima officially announced his retirement from competition during the Japan Swim 2016 at Tokyo Tatsumi International Swimming Pool on April 10, 2016 in Tokyo, Japan. (Photo by Christopher Jue/Getty Images)
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