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Jan Bakelants of Belgium (yellow) competes in Team Radioshack Leopard during stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Bryn Lennon/Getty Images) ( 172358133 )

Stage winners team Orica Greenedge with new overall leader Simon Gerrans of Australia passes during the fourth stage of the Tour de France cycling race, a team time-trial over 25 kilometers (15.6 miles) with start and finish in Nice, southern France, Tuesday July 2, 2013. (AP Photo/Christophe Ena) ( APTOPIX Cycling Tour de France )

Jan Bakelants of Belgium competes in Team Radioshack Leopard during stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Bryn Lennon/Getty Images) ( 172358128 )

Spectators take images of the podium ceremony of the fourth stage of the Tour de France cycling race, a team time-trial over 25 kilometers (15.6 miles) with start and finish in Nice, southern France, Tuesday July 2, 2013. (AP Photo/Christophe Ena) ( Cycling Tour de France )

BMC team riders cycle on the Promenade des Anglais during the 25km team time-trial fourth stage of the centenary Tour de France cycling race in Nice July 2, 2013. REUTERS/Eric Gaillard ( CYCLING-TOUR/ )

Team Europcar in action during stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Doug Pensinger/Getty Images) ( 172490652 )

BMC Racing Team in action during stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Doug Pensinger/Getty Images) ( 172490771 )

A woman sprays water on spectators from a Vittel vehicle belonging to the Tour de France advertising caravan before the start of the 25 km team time-trial and fourth stage of the 100th edition of the Tour de France cycling race on July 2, 2013 around Nice, southeastern France. AFP PHOTO / JOEL SAGETJOEL SAGET/AFP/Getty Images ( 521083251 )

Jan Bakelants of Belgium (yellow) competes in Team Radioshack Leopard during stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Doug Pensinger/Getty Images) ( 172490801 )

Team Garmin-Sharp in action during stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Doug Pensinger/Getty Images) ( 172490899 )

Lampre-Merida team riders cycle on the Promenade des Anglais during the 25km team time-trial fourth stage of the centenary Tour de France cycling race in Nice July 2, 2013. REUTERS/Benoit Tessier ( CYCLING-TOUR/ )

Team Saxo-Tinkoff riders cycle on the Promenade des Anglais during the 25km team time-trial fourth stage of the centenary Tour de France cycling race in Nice July 2, 2013. REUTERS/Jean-Paul Pelissier ( CYCLING-TOUR/ )

Team Lotto-Belisol in action during stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Doug Pensinger/Getty Images) ( 172234744 )

Orica Greenedge team's Australia's Simon Gerrans crosses the finish line with his teammates at the end of the 25 km team time-trial and fourth stage of the 100th edition of the Tour de France cycling race on July 2, 2013 around Nice, southeastern France. PASCAL GUYOT/AFP/Getty Images ( 521084366 )

Team Orica Greenedge with new overall leader Simon Gerrans of Australia in fifth position with mouth open, passes under a bridge during the fourth stage of the Tour de France cycling race, a team time-trial over 25 kilometers (15.6 miles) with start and finish in Nice, southern France, Tuesday July 2, 2013. (AP Photo/Laurent Cipriani) ( APTOPIX Cycling Tour de France )

Team Lampre-Merida in action during stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Doug Pensinger/Getty Images) ( 172490678 )

Riders of Sky team compete during the 25 km team time-trial and fourth stage of the 100th edition of the Tour de France cycling race on July 2, 2013 around Nice, southeastern France. JEFF PACHOUD/AFP/Getty Images ( 521082758 )

Riders of Cannondale team compete during the 25 km team time-trial and fourth stage of the 100th edition of the Tour de France cycling race on July 2, 2013 around Nice, southeastern France. JOEL SAGET/AFP/Getty Images ( 521080080 )

Vehicles belonging to the Tour de France advertising caravan are pictured before the start of the 25 km team time-trial and fourth stage of the 100th edition of the Tour de France cycling race on July 2, 2013 around Nice, southeastern France. JOEL SAGET/AFP/Getty Images ( 521079456 )

A picture taken with a tilt and shift lens on July 2, 2013 shows cyclists of the Cofidis team riding during the 25 km team time-trial and fourth stage of the 100th edition of the Tour de France cycling race in Nice, French Riviera. VALERY HACHE/AFP/Getty Images ( 521082591 )

Stage winner team Orica Greenedge with Simon Gerrans of Australia, wearing the overall leader's yellow jersey, celebrates on the podium of the fourth stage of the Tour de France cycling race, a team time-trial over 25 kilometers (15.6 miles) with start and finish in Nice, southern France, Tuesday July 2, 2013. (AP Photo/Christophe Ena) ( APTOPIX Cycling Tour de France )

Australia's Simon Gerrans kisses his overall leader yellow jersey on the podium at the end of the 25 km team time-trial and fourth stage of the 100th edition of the Tour de France cycling race on July 2, 2013 around Nice, southeastern France. PASCAL GUYOT/AFP/Getty Images ( 521084072 )

Peter Sagan of Slovakia and Team Cannondale celebrates his green jersey for best sprinter on the podium after stage four of the 2013 Tour de France, a 25KM Team Time Trial on July 2, 2013 in Nice, France. (Photo by Doug Pensinger/Getty Images) ( 172460897 )