Chris Froome protects Tour de France lead after Warren Barguil wins stage 18

• Team Sky’s race leader holds off main rivals Bardet and Uran
• Froome’s deficit trimmed to 23sec with three stages remainingChris Froome conceded four seconds to Romain Bardet on the Col d’Izoard but took another step towards his fourth Tour de France title as Warren Barguil won stage 18.Froome was alongside Bardet on the finish line but it was the Frenchman who finished third behind Barguil and Darwin Atapuma to collect four bonus seconds and trim his deficit in se