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Supporters cheer overall leader's yellow jersey Britain's Christopher Froome during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. JEFF PACHOUD/AFP/Getty Images ( 521347700 )

Race leader's yellow jersey Team Sky rider Christopher Froome of Britain climbs the Mont Ventoux during the 242.5 km fifteenth stage of the centenary Tour de France cycling race from Givors to Mont Ventoux July 14, 2013. REUTERS/Stephane Mantey/Pool ( CYCLING-TOUR/ )

France's Sylvain Chavanel rides in the breakaway during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. JOEL SAGET/AFP/Getty Images ( 521344479 )

Overall leader's yellow jersey Britain's Christopher Froome rides to win during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. REGIS HALBOUT/AFP/Getty Images ( 521345725 )

Peter Sagan fans line the road during stage fifteen of the 2013 Tour de France, a 242.5KM road stage from Givors to Mont Ventoux, on July 14, 2013 in Givors, France. (Photo by Bryn Lennon/Getty Images) ( 173445842 )

Spain's Alberto Contador smiles as he rides with a teammate during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. JEFF PACHOUD/AFP/Getty Images ( 521344378 )

The pack of riders cycle during the 242.5 km fifteenth stage of the centenary Tour de France cycling race from Givors to Mont Ventoux July 14, 2013. REUTERS/Eric Gaillard ( CYCLING-TOUR/ )

The pack passes spectators waving British flags during the fifteenth stage of the Tour de France cycling race over 242.5 kilometers (150.7 miles) with start in in Givors and finish on the summit of Mont Ventoux pass, France, Sunday July 14, 2013. The riders climbed to an altitude of 1912 meters (6,273 Feet) tackling Mont Ventoux pass at the end of the longest stage of the 100th Tour de France edition. (AP Photo/Laurent Cipriani) ( Cycling Tour de France )

Richie Porte of Australia and SKY Procycling rides at the front of the peloton during stage fifteen of the 2013 Tour de France, a 242.5KM road stage from Givors to Mont Ventoux, on July 14, 2013 on Mont Ventoux, France. (Photo by Bryn Lennon/Getty Images) ( 173445789 )

Overall leader's yellow jersey Britain's Christopher Froome (5rdL) rides in the pack past a lavender field during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. JOEL SAGET/AFP/Getty Images ( 521343501 )

Roman Kreuziger of the Czech Republic, left, and Christopher Froome of Britain, wearing the overall leader's yellow jersey, climb Mont Ventoux pass with the pack during the fifteenth stage of the Tour de France cycling race over 242.5 kilometers (150.7 miles) with start in in Givors and finish on the summit of Mont Ventoux pass, France, Sunday July 14, 2013. The riders will climb to an altitude of 1912 meters (6,273 Feet) as they tackle Mont Ventoux pass at the end of the longest stage of the 100th Tour de France edition. (AP Photo/Christophe Ena) ( Cycling Tour de France )

Vacansoleil team rider Wouters Poels of the Netherlands climbs the Mont Ventoux during the 242.5 km fifteenth stage of the centenary Tour de France cycling race from Givors to Mont Ventoux July 14, 2013. REUTERS/Jacky Naegelen ( CYCLING-TOUR/ )

The helicopter of live TV transmissions hovers over the riders as they climb Mont Ventoux pass during the fifteenth stage of the Tour de France cycling race over 242.5 kilometers (150.7 miles) with start in in Givors and finish on the summit of Mont Ventoux pass, France, Sunday July 14, 2013. The riders climbed to an altitude of 1912 meters (6,273 Feet) tackling Mont Ventoux pass at the end of the longest stage of the 100th Tour de France edition. (AP Photo/Laurent Cipriani) ( Cycling Tour de France )

The pack rides during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. JOEL SAGET/AFP/Getty Images ( 521348330 )

Green jersey of best sprinter Slovakia's Peter Sagan rides in the breakaway during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. JOEL SAGET/AFP/Getty Images ( 521343541 )

The pack with Christopher Froome of Britain, wearing the overall leader's yellow jersey, left, passes rock formations during the fifteenth stage of the Tour de France cycling race over 242.5 kilometers (150.7 miles) with start in in Givors and finish on the summit of Mont Ventoux pass, France, Sunday July 14, 2013. The riders will climb to an altitude of 1912 meters (6,273 Feet) as they tackle Mont Ventoux pass at the end of the longest stage of the 100th edition of the Tour de France. (AP Photo/Christophe Ena) ( Cycling Tour de France )

Best climber's polka dot jersey, France's Pierre Rolland drinks a soda as he rides in the breakaway during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. JOEL SAGET/AFP/Getty Images ( 521344139 )

Overall leader Christopher Froome of Britain celebrates as he crosses the finish line at the end of the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. JOEL SAGET/AFP/Getty Images ( 521345437 )

Advertising vehicles of the sponsors make their way to the summit of Mont Ventoux pass, rear, during the fifteenth stage of the Tour de France cycling race over 242.5 kilometers (150.7 miles) with start in in Givors and finish on the summit of Mont Ventoux pass, France, Sunday July 14, 2013. The riders climbed to an altitude of 1912 meters (6,273 Feet) tackling Mont Ventoux pass at the end of the longest stage of the 100th Tour de France edition. (AP Photo/Laurent Rebours) ( Cycling Tour de France )

Overall leader's yellow jersey Britain's Christopher Froome rides ahead of Colombia's Nairo Quintana during the 242.5 km fifteenth stage of the 100th edition of the Tour de France cycling race on July 14, 2013 between Givors and Mont Ventoux, southeastern France. Stéphane Mantey/AFP/Getty Images ( 521348320 )

French soldiers take images as stage winner and overall leader Christopher Froome of Britain celebrates as he crosses the finish line of the fifteenth stage of the Tour de France cycling race over 242.5 kilometers (150.7 miles) with start in in Givors and finish on the summit of Mont Ventoux pass, France, Sunday July 14, 2013. The riders will climb to an altitude of 1912 meters (6,273 Feet) as they tackle Mont Ventoux pass at the end of the longest stage of the 100th Tour de France edition. (AP Photo/Christophe Ena) ( Cycling Tour de France )

Three-time Tour de France winner Greg Lemond of the U.S., gives a thumbs up on the podium of the fifteenth stage of the Tour de France cycling race over 242.5 kilometers (150.7 miles) with start in in Givors and finish on the summit of Mont Ventoux pass, France, Sunday July 14, 2013. The riders climbed to an altitude of 1912 meters (6,273 Feet) tackling Mont Ventoux pass at the end of the longest stage of the 100th Tour de France edition. (AP Photo/Christophe Ena) ( Cycling Tour de France 5 Things To Know )

A spectator sprays water as Sylvain Chavanel of France climbs Mont Ventoux pass during the fifteenth stage of the Tour de France cycling race over 242.5 kilometers (150.7 miles) with start in in Givors and finish on the summit of Mont Ventoux pass, France, Sunday July 14, 2013. The riders climbed to an altitude of 1912 meters (6,273 Feet) tackling Mont Ventoux pass at the end of the longest stage of the 100th Tour de France edition. (AP Photo/Laurent Cipriani) ( Cycling Tour de France )

Current race leader and wearer of the Maillot Jaune, Chris Froome of Great Britain and SKY Procycling celebrates on the podium after winning stage fifteen of the 2013 Tour de France, a 242.5KM road stage from Givors to Mont Ventoux, on July 14, 2013 on Mont Ventoux, France. (Photo by Doug Pensinger/Getty Images) ( 173440198 )