Andy Gilbert wins 18th stage of the Tour de France on Col du Nord . Schleck closes to within 15 seconds of race leader Thomas Voeckler of France . Andy 's brother takes second on the stage to improve to third overall . Defending champion Alberto Rodríguez loses time on the final climb .
Andy Schleck wins 18th stage of the Tour de France on Col du Galibier . Schleck closes to within 15 seconds of race leader Thomas Voeckler of France . Andy 's brother takes second on the stage to improve to third overall . Defending champion Alberto Contador loses time on the final climb .