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Li Zhuhao(R) of China and Joseph Schooling of Singapore check the screen after the men's 100m butterfly preliminary at the Gwangju 2019 FINA World Championships in Gwangju, South Korea, July 26, 2019. (Xinhua/Tao Xiyi)
Li Zhuhao(R) of China and Joseph Schooling of Singapore check the screen after the men's 100m butterfly preliminary at the Gwangju 2019 FINA World Championships in Gwangju, South Korea, July 26, 2019. (Xinhua/Tao Xiyi)