South Africa's Daryl Impey celebrates his yellow jersey of overall leader on the podium at the end of the 176.5 km sixth stage of the 100th edition of the Tour de France cycling race on July 4, 2013 between Aix-en-Provence and Montpellier, southern France.   AFP PHOTO / JEFF PACHOUD        (Photo credit should read JEFF PACHOUD/AFP/Getty Images)