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Olympics Day 9 - Cycling - Track

(L-R) Juliana Gaviria of Colombia, Natasha Hansen of New Zealand and Ekaterina Gnidenko of Russia compete in the Women's Sprint Track Cycling 1/16 Final Repechages on Day 9 of the London 2012 Olympic Games at Velodrome on August 5, 2012 in London, England. (Photo by Cameron Spencer/Getty Images)

A look back at the London Olympics

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