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Michael Cherry (front) of the United States reacts after the 4x400m mixed relay final at the 2019 IAAF World Athletics Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Jia Yuchen)
Michael Cherry (front) of the United States reacts after the 4x400m mixed relay final at the 2019 IAAF World Athletics Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Jia Yuchen)