Christian Prudhomme's comment
Climbers battling it out for the Yellow Jersey will have two more days to express themselves, to change the outcome or comfort a decent lead and gain precious time. Heading towards Serre-Chevalier, we will give them the most prestigious of what the Alps has to offer: the Col de la Croix de Fer and then the Galibier back after a 6-year absence, going up the Télégraphe. It's now up to them.
Km 30.0 - Col d'Ornon 5.1 kilometre-long climb at 6.7% - category 2
Km 78.5 - Col de la Croix de Fer (2 067 m) 24 kilometre-long climb at 5.2% - category H
Km 132.5 - Col du Télégraphe (1 566 m) 11.9 kilometre-long climb at 7.1% - category 1
Km 155.0 - Col du Galibier (2 642 m) Souvenir Henri Desgrange 17.7 kilometre-long climb at 6.9% - category H
Galibier over Télégraphe... Sounds like a message.