Spaniard Alberto Contador took a huge step towards a third yellow jersey triumph after matching a series of attacks from Andy Schleck on the Tour de France 17th stage yesterday.
Schleck began the final climbing stage of this year's race, a 174km ride from Pau to the Col du Tourmalet with an eight-second deficit to Spain's two-time winner in the race for the yellow jersey.
Schleck warned before the stage he was confident of attacking Contador throughout the climb to the legendary summit and taking the yellow back from the Spaniard, who took the race lead after Schleck suffered a mechanical setback on Monday.
But despite repeated attacks in a bid to shake Contador off his wheel during the final 10km of the 18.6km slog to the fog-shrouded summit, Schleck finished with Contador sitting comfortably on his wheel at the finish line.
It means Astana team leader Contador will retain his eight-second lead over the Saxo Bank climbing specialist ahead of today's 18th stage, which is likely to finish in a bunch sprint.
Schleck's last chance to overhaul Contador would be in tomorrow's penultimate stage time trial over a 52km-long flat course, a discipline in which the Spaniard has a far better record.
On Wednesday, Schleck said he would need to go into the time trial with a lead of at least one minute on Contador, "but preferably more".
Barring catastrophe for Contador between today and tomorrow, he will claim his third yellow jersey after victories in 2007 and 2009.
In 2008, Contador did not compete as he turned his attention to the Tour of Italy and Tour of Spain - both of which he won.
It is the second stage win of the race for Schleck, who also won the stage to Morzine-Avoriaz in the Alps.
Another Spaniard, Joaquin Rodriguez of Team Katusha, came over the finish line in third place at 1min 18sec, with Canadian Ryder Hesjedal fourth at 1:27, Spaniard Samuel Sanchez fifth at 1:32 and Denis Menchov sixth at 1:40.
One of the big losers of the day was American Levi Leipheimer, who finished outside the stage's top 15 and out of the top ten in the general classification.