Nibali stretches lead with another stage win
Italian wins 13th to increase his Tour de France lead
The peleton early in the 13th stage of the Tour de France cycling race, over from Saint-Etienne to Chamrousse. Photograph: EPA
Nibali pulled clear over the final 3km of the hors categorie climb to Chamrousse in a move which also saw him take the polka dot jersey from Joaquim Rodriguez (Katusha).
Porte dropped off the back of the peloton midway through the final climb and was still struggling towards the finish as Nibali celebrated another victory.
Majka pipped Konig to second place on the podium while Valverde battled to a fourth-place finish.