After a big mountain day yesterday, today we do the full last climb of the La Rosière with the finish at the top of this monster 17km climb. The slopes are not too steep compared to previous climbs, but the length of the climb will the hard part and maintain a solid tempo for over 40min. The fastest rider on this climb on Strava is Thibaut Pinot in 46min.
Today you are the GC rider so you can't let off the gas at any stage. Staying the the attacks at the bottom and then holding a pretty consistent tempo all the way will help you maintain position with the leaders. Get ready for a solid day.