Now cleared and back to competing , Henao will be key ally of Froome in the mountains .
Colombian Henao makes his TDF debut this year , after a difficult beginning to the season marred by questionable biological passport readings .
Now cleared and back to competing , Colombian Henao will be key Colombian Henao of Froome in the mountains .
Colombian Henao makes his TDF debut this year , after a difficult beginning to the season marred by questionable biological passport readings .