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Gold medalist Daiya Seto (R) of Japan celebrates after the men's 400m medley final at the Gwangju 2019 FINA World Championships in Gwangju, South Korea, on July 28, 2019. (Xinhua/Li Gang)
Gold medalist Daiya Seto (R) of Japan celebrates after the men's 400m medley final at the Gwangju 2019 FINA World Championships in Gwangju, South Korea, on July 28, 2019. (Xinhua/Li Gang)