I think each of the Kingston Trio (Carapaz, Thomas, Porte) ranks above Lopez & Mas. They have to stay on their bikes for the whole three weeks, which isn't very likely, but if they stay out of trouble I think it's unlikely for Movistar to get into the podium.
Apart from Slovenians, INEOS and Movistar, the field for GC is extremely underwhelming.
Apart from Slovenians, INEOS and Movistar, the field for GC is extremely underwhelming.