Gallery | IAAF WORLD CHAMPIONSHIP 2015 Day 9 | APTOPIX China Athletics Worlds

Jamaica's Novlene Williams-Mills celebrates Jamaica winning the gold medal in the womenís 4x400 relay final at the World Athletics Championships at the Bird's Nest stadium in Beijing, Sunday, Aug. 30, 2015. United States' Francena McCorory and the United States team finished with the silver medal. (AP Photo/David J. Phillip)

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