Barrichello: Brawn can still win titles

Barrichello's team has seen rival Red Bull Racing close in significantly in the last three races, and Brawn is now just 15.5 points ahead in the constructors' championship.

In the drivers' standings, Mark Webber is 18.5 points behind Jenson Button, having reduced the gap to the Briton by 15 points as Button has managed a fifth place as his best result in the last three outings.

But Barrichello reckons that Button has nothing to worry about yet, and the Brazilian is optimistic Brawn can return to its early-season form.

"If I was Jenson, 18.5 points ahead, I would still be very comfortable," Barrichello said. "While you are in front it's very comfortable. When you lose the lead is when it doesn't feel like that anymore.

"We don't have a good momentum going on, but the team is very united. We built a really good gap at the beginning so it's up to us to prove things again. I think we can do it."

Barrichello admits, however, there is more pressure on his team now, and he insists Brawn must remain calm and analyse the reasons for its drop in performance.

"I think there's a bit more pressure right now on the team," he added. "For me, I'm 26 points behind Jenson, so I think it's fairly open. To be very honest with you, having more teams to fight with ourselves is good for myself because we could have some differences.

"The whole team needs to keep it cool and work on it. We have a really good bunch of people. There is something that didn't go right in the last three races. We just need to visit every little thing that we've done on the car. If there was any little change.. anything that could prove wrong or right."