Watch: Footage gives a glimpse of the mountain-top gravel road that riders will face at 2018 Tour de France

Two kilometres of gravel on the Plateau des Glières could catch a few riders out Au sommet, un parfum des tours d'antan :

Philip Deignan signs new deal with Team Sky

Irishman Philip Deignan will ride for a fifth season with British WorldTour outfit Sky after inking a new contract Philip Deignan Credit: Graham Watson