David McPherson coaches Switzerland's Davis Cup tennis team during a training session at the Pierre Mauroy stadium in Villeneuve d'Ascq, northern France, November 19, 2014. France will face Switzerland in their Davis Cup final which will start on Friday November 21, 2014. With the Davis Cup final against France looming, Roger Federer and his Swiss team mate Stan Wawrinka played down talk of an internal row, sparked by the pair's fiery clash at the ATP World Tour Finals last week.  [Photo/Agencies]