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Team of the United States celebrate winning the gold medals after the men's 4X400m relay at the 2019 IAAF World Athletics Championships in Doha, Qatar, Oct. 6, 2019. (Xinhua/Wang Jingqiang)
Team of the United States celebrate winning the gold medals after the men's 4X400m relay at the 2019 IAAF World Athletics Championships in Doha, Qatar, Oct. 6, 2019. (Xinhua/Wang Jingqiang)