Britain's Chris Froome gestures to a teammate (right) after getting up from his third crash in two days. Froome, who hurt his wrist in Tuesday's fall, has abandoned the race that he won in 2013. Laurent Cipriani/AP hide caption

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The women of the Afghan National Cycling Federation team train outside Kabul, the capital. They face poor road conditions, terrible traffic, lots of gawking and even threats of violence in pursuit of their sport. Peter Breslow/NPR hide caption

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Cyclists negotiate rush hour traffic in central London on Nov. 15. Fourteen London cyclists have died so far this year, all in accidents involving heavy goods vehicles. Oli Scarff/Getty Images hide caption

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The head of the World Anti-Doping Agency calls Lance Armstrong's lifetime ban "done and dusted." Armstrong is seen here riding in an event in Iowa this year. Matthew Stockman/Getty Images hide caption

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The incoming president of the International Cycling Union, Brian Cookson (right), shakes hands earlier this month with Pat McQuaid, the incumbent he defeated. Fabrice Coffrini/AFP/Getty Images hide caption

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American cyclist Chris Horner celebrates winning Spain's Vuelta bicycle race Sunday. Anti-doping officials say that Horner, who at 41 is the oldest ever to win one of cycling's top events, was not at the hotel drug testers visited. Jaime Reina/AFP/Getty Images hide caption

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British cyclist Graeme Obree, 48, celebrates setting the land speed record for prone cycling at the International Human Powered Vehicle track near Battle Mountain, Nevada. AFP/AFP/Getty Images hide caption

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