Team Sky leader Bradley Wiggins is considering shelving his overall classification bid to target a stage victory at the Tour de France.
Thursday's 174-kilometre stage 17 from Pau to the summit of the Col du Tourmalet is crucial in the race for the leader's yellow jersey between Alberto Contador and Andy Schleck - they are separated by eight seconds with four days of racing remaining - and in the general classification standings. But Saturday's 52km time-trial from Bordeaux to Pauillac represents an opportunity for success for Wiggins, who finished fourth in the 2009 Tour but currently lies 21st in the overall standings.
"I don't know whether to persist and finish in 23rd or 24th overall or really put everything into that last time-trial now," said Wiggins on www.cyclingnews.com.
"I'm looking forward to the time-trial.
"Looking at how everyone is, everyone's on their knees - (Fabian) Cancellara and all those guys. "I've maybe got a chance of picking up a stage win, but I don't know."
Cancellara won the prologue in Rotterdam on July 3, when Wiggins - usually adept against the clock - finished 77th, almost one minute down.
The 30-year-old Londoner recovered in the first week and was well placed until losing time on each occasion the Tour went uphill - first in the Alps and then in the Pyrenees.
It means his bid to be the first Briton on the Tour podium, having equalled Robert Millar's 1984 best in 2009, must wait for another year.
Following Sunday's stage to Ax-3-Domaines, Wiggins issued a scathing assessment of his 2010 Tour.
"The minute I came out and said it, it felt like a weight off my shoulders," he said.