Michelle Perry of the U.S. celebrates after the women's 100 metres final at the 11th IAAF World Athletics...
Michelle Perry of the U.S. (L) celebrates after the women's 100 metres final as Sweden's Susanna Kallur (C) falls beside Canada's Perdita Felicien at the 11th IAAF World Athletics Championship in Osaka August 29, 2007. REUTERS/Dylan Martinez (JAPAN)