Liuzzi unhappy at Webber after clash

"It was a shame the way things went," said Liuzzi, who finished in 13th position, two laps down.

"I think I was in about P10 after a few laps and everything seemed to be going fine and we were competitive.

"Then I came up behind Webber, who was very slow and struggling. As I tried to overtake him, he closed the door on me and as I came out of his slipstream on the straight, he moved off his line twice. His rear tyres touched my front wing and I had to come in to the pits.

"It was a shit result as it had looked better at the start," added the Italian.

Liuzzi's teammate Scott Speed enjoyed a better day, the American fighting his way to a top ten finish.

Although Speed admitted his car was slower than expected, the rookie was still encouraged by the result.

"It was very treacherous out there, with all the loose rubber and asphalt on the track," said Speed. "Towards the end of the race, the hairpin was almost undriveable, really really bad. On my in-lap for the first pit stop, I had a problem with my left rear tyre that cost me some time on the way in.

"We did not have a fast car today, or at least not as fast as we expected after Saturday morning, but we muscled our way up the order. But in the end a tenth place is good for us.

"I think our performance today means I can be a little bit more optimistic about my home race next weekend."