Team Sky manager Sir Dave Brailsford told ITV he believes Tour leader Chris Froome can not be match as a climber.
The British rider won Stage 15, after a long ride up against Colombian Nairo Quintada.
“I think at this moment in time he’s the best climber in the world, and he’s showed that here.
“An hour long effort after five and a half hours of riding, it’s a great effort, but that’s what we train for. This stage was made for us.”