Gallery | IAAF WORLD CHAMPIONSHIP 2015 Day 7 | ATHLETICS-WORLD-2015

USA's Dawn Harper Nelson (floor) falls as Jamaica's Danielle Williams (R), USA's Sharika Nelvis (2R), Belarus's Alina Talay (3R) and Norway's Isabelle Pedersen (L) jump a hurdle in the semi-final of the women's 100 metre hurdles athletics event at the 2015 IAAF World Championships at the "Bird's Nest" National Stadium in Beijing on August 28, 2015. AFP PHOTO / FRANCK FIFE

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