Gallery | IAAF WORLD CHAMPIONSHIP 2015 Day 9 | ATHLETICS-WORLD-2015

(L-R) Jamaica's Stephenie Ann McPherson, Novlene Williams-Mills, Shericka Jackson and Christine Day celebrate after winning the gold medal in the final of the women's 4x400 metres athletics event at the 2015 IAAF World Championships at the "Bird's Nest" National Stadium in Beijing on August 30, 2015. AFP PHOTO / OLIVIER MORIN

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