The Tour De France

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New overall leader Bradley Wiggins rides during the seventh stage of the Tour de France over 199 kilometers (123.6 miles) with start in Tomblaine and finish in La Planche des Belles Filles, France, on Saturday July 7, 2012. (AP Photo/Laurent Cipriani)

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Peter Sagan of Slovakia, wearing the best sprinter's green jersey, crosses the finish line ahead of Andre Greipel of Germany, bottom left, to win the sixth stage of the Tour de France cycling race over 207.5 kilometers (129 miles) with start in Epernay and finish in Metz, France, Friday July 6, 2012. (AP Photo/Christophe Ena)

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Andre Greipel of Germany crosses the finish line ahead of Mark Cavendish of Britain, left, Tom Veelers of The Netherlands, second right, and Matthew Harley Goss of Australia, right, to win the fifth stage of the Tour de France cycling race over 196.5 kilometers (122 miles) with start in Rouen and finish in Saint-Quentin, France, Thursday July 5, 2012. (AP Photo/Laurent Rebours

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Andre Greipel of Germany won the fourth stage of the Tour de France, which was over 214.5 kilometers (133.3 miles) with a start in Abbeville and finish in Rouen, France, on Wednesday July 4, 2012. (AP Photo/Laurent Rebours)

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Fabian Cancellara, wearing the overall leader's yellow jersey, celebrates on the podium after winning the prologue of the Tour de France, an individual time trial over 6,4 kilometers (4 miles) with start and finish in Liege, Belgium, on Saturday June 30 2012. (AP Photo/Laurent Rebours)

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Lance Armstrong won the Tour de France every year from 1999 through 2005. A federal probe into alleged doping ended in February with no criminal charges being brought. (Associated Press)

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New overall leader Cadel Evans of Australia celebrates on the podium of the 20th stage of the Tour de France cycling race, an individual time trial over 42.5 kilometers (26.4 miles) starting and finishing in Grenoble, Alps region, France on Saturday. (AP Photo/Christophe Ena)

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Andy Schleck of Luxembourg, wearing the overall leader's yellow jersey, celebrates on the podium of the 19th stage of the Tour de France cycling race Friday. All that's left of the Tour de France is a weekend time trial and the final dash to the Champs Elysees in Paris. (AP Photo/Laurent Cipriani)

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Stage winner Andy Schleck of Luxembourg crosses the finish line on Galibier pass to win the 18th stage of the Tour de France cycling race over 200.5 kilometers (124.6 miles) starting in Pinerolo, Italy and finishing on Galibier pass, Alps region, France. (AP Photo/Christophe Ena)

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ASSOCIATED PRESS Thomas Voeckler has a nearly two-minute lead in the Tour de France but insists he doesn't stand a chance.

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Stage winner Rui Alberto Costa of Portugal celebrates on the podium of the 8th stage of the Tour de France cycling race over 189 kilometers (117.5 miles) starting in Aigurande and finishing in Super Besse Sancy, central France, Saturday July 9, 2011. (AP Photo/Laurent Rebours)

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Edvald Boasson Hagen of Norway raises his arms as he crosses the finish line to win the sixth stage of the Tour de France cycling race over 226.5 kilometers (140.7 miles) starting in Dinan, Brittany, and finishing in Lisieux, Normandy, western France, Thursday July 7, 2011. (AP Photo/Christophe Ena)