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Lance Armstrong in a cloud of dust

Fred Mons / Pool via AP

Lance Armstrong of the US rides in a cloud of dust on a cobblestone section during the third stage of the Tour de France cycling race over 213 kilometers (132.4 miles) with start in Wanze, Belgium and finish in Arenberg, France, Tuesday July 6, 2010.

Armstrong lost ground in the controversial "cobblestone stage." Read about it here.