There were no positive doping tests during the 2013 Tour de France, officials say. Here, Chris Froome, the overall winner, steps into the anti-doping control bus after a stage in the race. Pascal Guyot /AFP/Getty Images hide caption
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Race leader Chris Froome of Great Britain finishes Stage 20 of the 2013 Tour de France. The penultimate stage of the Tour put Froome ahead by 5 minutes and practically guarantees he finishes Sunday in Paris in the yellow jersey. John Berry/Getty Images hide caption
A woman takes a picture of a little girl posing in a cyclist cutout at the 2013 Tour de France. A new petition calls for including women in the epic race. Jeff Pachoud/AFP/Getty Images hide caption
Riders and bicycles were spread across the road after one of the crashes Saturday during Stage 1 of the Tour de France, which began in Corsica. Joel Saget/pool /EPA/LANDOV hide caption
The 2013 Tour de France is breaking with several traditions, as it starts with a sprint stage on Corsica Saturday. Here, American Tejay van Garderen, 24, second from left, trains with his team on the island. Laurent Cipriani/AP hide caption
In a lawsuit filed against Lance Armstrong on Tuesday, the Justice Department said the disgraced Tour de France winner "unjustly enriched" himself through his contract with the U.S. Postal Service. Reed Saxon/AP hide caption
Oprah Winfrey talks to cyclist Lance Armstrong in Austin, Texas, on Monday. The first part of the interview airs Thursday night. George Burns/Courtesy of Harpo/AP hide caption
Lance Armstrong, right, faces several court cases tied to evidence that he cheated. One of the suits was filed by his former U.S. Postal Service teammate Floyd Landis. Here, the pair ride during the 2003 Tour de France. Paolo Cocco/AFP/Getty Images hide caption
Lance Armstrong, in the leader's yellow jersey, during the 2001 Tour de France. Patrick Kovarik /AFP/Getty Images hide caption
Lance Armstrong grimaces prior to the start of the third stage of the Tour de France cycling race in Wanze, Belgium, on July 6, 2010. Armstrong said Thursday he is finished fighting charges from the U.S. Anti-Doping Agency that he used performance-enhancing drugs during his unprecedented cycling career. Christophe Ena/AP hide caption
Floyd Landis, left, and then-teammate Lance Armstrong during the 2004 Tour de France. Bernard Papon /AP hide caption
Defending Tour de France winner Alberto Contador is harangued by a man dressed in medical togs, during Contador's climb of the Alpe d'Huez. Lionel Bonaventure/AFP/Getty Images hide caption
The first Tour de France, 1903 The Nationaal Archief/The Hague/Flickr Commons hide caption