Chris Froome on guard after crushing victory in the mountains
Brit is almost three minutes clear of the rest but big climbs ahead
Chris Froome says his Sky team will be on their guard despite him putting his rivals to the sword in the first mountains stage at the Tour de France.
Froome is almost three minutes clear of the rest after a stunning victory at the summit finish of La Pierre-Saint Martin on Tuesday in which he blitzed all his rivals.
Reigning champion Vincenzo Nibali is even down in 10th overall, almost seven minutes off the pace.
Australian teammate Richie Porte took second on the 10th stage from Tarbes while Geraint Thomas is up to fifth overall after a strong sixth-placed finish as Sky impressed.
Yet two years ago, when Froome won the Tour, he put in a similarly dashing performance to win the first summit finish at Ax 3 Domaines, but then found himself alone and exposed a day later.