Froome has looked virtually unbeatable in the 12 months since he was out - manoeuvred by Vincenzo Nibali in the 2013 edition .
Froome 's absence opens up both the race as a whole , and the role of leader at Sky .
Froome has looked virtually unbeatable in the 12 months since he was out - manoeuvred by Vincenzo Nibali in the 2013 edition , and his absence opens up both the race as a whole , and the role of leader at Sky .