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Gold medalist Daiya Seto 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/Bai Xuefei)
Gold medalist Daiya Seto 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/Bai Xuefei)