Cycling: Vincenzo Nibali wins 13th stage of Tour de France

(AGI) Chamrousse (France), July 18 - On the day cyclingcelebrates the centenary of the birth of Gino Bartali, Italy'sVincenzo Nibali won the 13th stage of the 2014 Tour de France.The race leader collected his third Tour stage win this year,beating Spain's Alejandro Valverde (Movistar) and Australia'sRichie Porte (Sky) at the end of the 197.5 kilometres fromSaint-Etienne to Chamrousse. Valverde finished fourth at 50seconds behind. . .