PERIGUEUX, FRANCE - JULY 26:  Vincenzo Nibali of Italy and the Astana Pro Team races to fourth place in the individual time trial and defended the overall race leader's jersey during the twentieth stage of the 2014 Tour de France, a 54km individual time trial stage between Bergerac and Perigueux, on July 26, 2014 in Perigueux, France.  (Photo by Doug Pensinger/Getty Images)