Team Sky confident they can control Contador it seems:
"Alberto’s very good on the steep climbs the Vuelta has, the ones where you need to make big, sudden accelerations,” Yates told Cyclingnews.
“But we’ve got a very strong team going there, so we’ll be able to control him unless he’s back to his absolute best where we’ll try and ride across to him when he attacks.”
“We know his strongest weapon is that sudden acceleration on the climbs, but we’ve got the kind of team that can pull that back and launch Chris up to him.”
Hmmm