Cycling - Tour de France cycling race - The 184.5 km (114.6 miles) Stage 17 from Berne to Finhaut-Emosson, Switzerland - 20/07/2016 - Movistar Team rider Nairo Quintana of Colombia prepares to start before the stage. REUTERS/Juan Medina Picture Supplied by Action Images
LONDON (Reuters) - Nairo Quintana will struggle to complete his collection of Grand Tour triumphs unless he adopts a more aggressive style, three-times Tour de France winner Greg LeMond believes.
The Colombian, winner of the 2014 Giro d'Italia and last year's Vuelta, has been frustrated in his efforts to win the Tour de France, finishing second and third in the last two editions both won by Chris Froome.
