Alaphilippe defends yellow with daredevil descent as Quintana wins stage 18 - Video

Julian Alaphilippe (Deceuninck-QuickStep) descending off the Col du Galibier

Julian Alaphilippe (Deceuninck-QuickStep) descending off the Col du Galibier (Image credit: Bettini Photo)

Not even the high mountain passes of the Col d'Izoard and Col du Galibier could pry the maillot jaune from the shoulders of Julian Alaphilippe (Deceuninck-Quickstep) during stage 18 at the Tour de France.