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Liu Xiang

Xiang Liu of China kisses a hurdle after falling in the Men's 110m Hurdles Round 1 Heats on Day 11 of the London 2012 Olympic Games at Olympic Stadium on August 7, 2012 in London, England. (Photo by Stu Forster/Getty Images)

A look back at the London Olympics

Yahoo SportsAugust 14, 2012

A look at some of the most memorable photos from the London 2012 Olympics. -- By Carla Thorpe, Yahoo! Sports