Team Sky’s objective is clear ahead of the first day in the Tour de France’s high mountains: help Bradley Wiggins up the classification.

The team lost its second place overall on Saturday’s stage seven, when Geraint Thomas dropped behind the main leaders on the climb to Station des Rousses. Wiggins, though, gained three places in the classification and underscored the team’s objective for the Tour de France.

“We did everything right, we didn’t expend any more energy than we needed to,” said sports director, Sean Yates. “We didn’t lose any time with Bradley, which was the main objective.”

Wiggins is two minutes and 35 seconds behind overall leader Sylvain Chavanel (Quick Step), but only one minute and 10 seconds behind best place classification rider, Cadel Evans (BMC Racing).

Evans sits second overall, where Geraint Thomas (Sky) was placed prior to Saturday’s stage. Thomas struggled on the Croix de la Serra climb and then lost time on the final climb to Station des Rousses.

“G just couldn’t maintain his contact with the bunch,” said Yates. “Not that he would have got the yellow jersey anyway.”

Sky’s Edvald Boasson Hagen also suffered and lost nearly 19 minutes.

“The combination of the heat and the stress of the first week, took its toll. You could see by the size of the bunch at the finish that there were a few guys in the same boat.”

Wiggins and the rest of the Tour de France’s riders will face the race’s first high mountain stage on Sunday. The day ends with a 13.6-kilometre climb to Morzine, but also features the 14.3-kilometre Ramaz climb near the finish.

Tour de France 2010: Latest news

The Feed Zone (July 10): Tour de France news and views

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Analysis: The role of Renshaw

Cavendish strikes back in Tour de France

Thomas happy with Tour’s white jersey; but says ‘All for Brad’

Wiggins crashes on Tour stage start

Cavendish and Farrar return to top

Cavendish keeps up fight for first Tour win

Sky delivers Boasson Hagen to third without pressure

Tour de France 2010: Stage reports

Chavanel wins stage and takes overall as Thomas drops out of Tour’s white

Stage six: Cavendish makes it two as Tour hots up

Stage five: Cavendish wins his first stage of Tour

Stage four: Petacchi wins into Reims

Stage three: Hushovd takes dramatic win; Thomas second on stage and GC

Stage three live coverage: As it happened

Stage two: Comeback man Chavanel takes victory in Spa

Stage one: Petacchi wins in Brussels as bunch left in tatters

Prologue: Cancellara pips Martin to win

Tour de France 2010: Photos

Stage seven photo gallery

Stage six photo gallery

Stage five photo gallery

Stage four photo gallery

Stage three photo gallery

Stage two photo gallery

Stage one gallery

Prologue photo gallery

Tour de France 2010: Videos

Stage five video highlights

Stage four video highlights

Stage three video highlights

Stage two video highlights

Stage one video highlights

Prologue video highlights

Tour de France 2010: Race guide

Tour de France 2010: Cycling Weekly’s coverage index

Official start list, with race numbers

Brits at the Tour 2010

Tout team guide

Tour jerseys: What they are and what they mean

Brits in the Tours: From Robinson to Wiggins

Tour de France 2010: Pictures

Tour team presentation, Rotterdam

Tour teams take to the cobbles: Photo special