Unfortunately, I could not see the race today, and it seems like I will miss tomorrow's finish as well. But from what I am reading, he looked good.
Regarding the overall, I don't think he can take time tomorrow. He just needs to make sure he doesn't lose any stupid seconds. Then, it comes down to the TT, and I really can't predict what the outcome would be. I guess, Henao will struggle having to pace himself uphill. Kelderman, if he doesn't lose time tomorrow, could do very well but could also choke. Quintana might not be able to match Alberto's speed uphill without having a wheel to suck and both him and Henao could lose time on the final flat part. Pinot, Costa and Samu could all ride great TTs, but Alberto did a very thorough recon of the stage, he knows exactly how he wants to ride it, so hopefully he will be strong and his knowledge of the parcours will deliver him the overall victory. Spilak could be a dangerous outsider by the way.