Crashes mar the second stage of the Tour de France , won by Sylvain Chavanel . Hide Caption 8 of 11 Chavanel claims yellow jersey for first time as 123-strong group of riders agree not to race . Frenchman has almost three-minute advantage over previous leader Fabian Cancellara .
Crashes mar the second stage of the Tour de France , won by Sylvain Chavanel . Seven-time champion Lance Armstrong drops to fifth after crashing in Belgium . Chavanel claims yellow jersey for first time as 123-strong group of riders agree not to race . Frenchman has almost three-minute advantage over previous leader Fabian Cancellara .