Gary Imlach and Chris Boardman present highlights of stage four the longest stage of this year's race. It takes the riders from beautiful, historical Saumur on the Loire River, southeast to monumental Limoges, a distance of 237.5km. On paper, the stage suits sprinters like Kittel, Greipel, or Cavendish, but beware sidewinds and the unexpected effects of the very long distance. Commentary by Ned Boulting and David Millar with Daniel Friebe reporting from the roadside.