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China's Su Bingtian (2nd R) sprints with Christian Coleman (2nd L) of the United States during the men's 60m final of the IAAF World Indoor Championships in Birmingham, Britain, March 3, 2018. (Xinhua/Tim Ireland)
China's Su Bingtian (2nd R) sprints with Christian Coleman (2nd L) of the United States during the men's 60m final of the IAAF World Indoor Championships in Birmingham, Britain, March 3, 2018. (Xinhua/Tim Ireland)