Barrichello still positive on title chances

Barrichello, starting from places ahead of Button, finished in sixth position after a difficult day in which he had a costly problem during one of his pitstops.

The Brazilian crossed the finish line less than two seconds behind Button, who increased his lead to 15 points with three races remaining.

Despite failing to reduce the gap to Button, Barrichello insisted he remains optimistic.

"It was a pretty eventful weekend for me and a tough race today," said Barrichello. "I had a great start to make up two places and everything was going well in the first stint. It's a shame that the safety car didn't play into my hands but I was in a good position.

"Unfortunately I had a problem on my second pitstop when I couldn't engage neutral and the engine stalled which lost me the crucial time needed to stay ahead of Jenson. After that my brakes were struggling and I couldn't fight anymore so we came home with sixth position.

"It could have been a better weekend but I only lost a point to Jenson in the championship despite everything that happened so I'm staying positive."