Webber fears difficult race

The Williams driver, who is looking to score his team's first points since the European Grand Prix in May, will start the race from ninth place, after gaining a position following an engine change to Toyota's Ralf Schumacher.

Despite his promising performance, Webber is concerned he could pay the price for having used an extra set of tyres.

"Qualifying ended up okay. We made it into Q3 even if we finished 10th in the end," said Webber.

"To try and move our pace on, we had to use a new set of tyres in the last session which means I won't have them for the start of the race tomorrow, so it could be a tough day ahead, but we'll see."

Nico Rosberg endured a poor day, the German winding up 15th after struggling with his car's handling.

"I was pretty happy with my car in this morning's free practice," said Rosberg. "For qualifying we made quite a few set-up changes to find some more pace and moved towards Mark's set-up, but I didn't feel comfortable or confident with the car.

"My final position is disappointing, but I am sure the race will be better because we are looking good from a tyre perspective."