Italy's Vincenzo Nibali wearing the overall leader's yellow jersey concentrates before taking the start of the twentieth stage, a 54 km individual time trial, as part of the 101st edition of the Tour de France cycling race on July 26, 2014 between Bergerac and Perigueux, western France.  AFP PHOTO / LIONEL BONAVENTURE        (Photo credit should read LIONEL BONAVENTURE/AFP/Getty Images)