With Vincenzo Nibali comfortably installed in the yellow jersey and the only one of the three pre-race favourites to make it to the big mountain stages you could be excused for thinking it's all over in the Tour de France. That would be doing a disservice to the riders directly behind the Italian because although they might be wondering what they can do against a Nibali in top form they'll also be wondering how they can ambush each other. The two Alpine stages will tell us who can still race after two weeks and who seems to be hanging and on hoping for better days but you also need to consider there'll be some of the top ten GC riders better suited to one set of mountains compared to the later ones, which will undoubtedly decide the race.