Stage eight, the first at altitude, was taken by Ag2r-La Mondiale's Blel Kadri, who attacked from a breakaway group with to go; he managed to hold his lead over the chasing group of overall favourites, who came in over two minutes behind. His win put Kadri into the polka dot jersey. Another solo victory came the following day, when Tony Martin of Omega Pharma-Quick-Step dropped fellow breakaway rider Alessandro De Marchi (Cannondale) with remaining. A large group that formed in pursuit of the duo finished 2 min 45 s behind, with the unconcerned general classification contenders coming together in at 7 min 46 s down. The yellow jersey went to a rider from the first group, Lotto-Belisol's Tony Gallopin. Martin now led the mountains classification. Stage ten was the Tour's first high mountain stage. On the final climb to the finish at La Planche des Belles Filles, Nibali attacked from the group of overall contenders with remaining, passed two surviving riders from the day's early breakaway, and claimed his second stage win, which put him back in the yellow jersey. Joaquim Rodríguez (Team Katusha), one of the two breakaway riders, took the polka dot jersey. Contador crashed during the descent of the Petit Ballon, into the stage, forcing him to quit the race; it was later revealed that he had fractured his right tibia. The next day was the first rest day of the Tour.