Rubens Barrichello has vowed to focus only on victory at Interlagos, rather than worrying about championship scenarios.
The Brazilian is 14 points behind Brawn teammate Jenson Button heading into his home grand prix but is determined to concentrate solely on winning the race, saying the title will come his way if he deserves it.
"I am not calculating what I can or can't do, it is the fact of going there, winning the race and seeing later," he said. "I hope to be fighting for the championship until the end and hopefully I will win, if I deserve to win, by Abu Dhabi. "The chances are smaller but not as small as the 26-point deficit I had at one point, so they are very much alive. I have to go there [to Brazil] and win the race, that is the aim. The rest for me is really the rest, I don't care.
"Like I said, if I deserve to win the championship I will. I am not going to be in the middle of the race thinking about it five plus five is 10. I have no intention to look at points or this and that, my intention in to enjoy it and win the race."
Barrichello also paid tribute to his team, which is just half a point away from sealing the constructors' title.
"At the beginning of the year, I had no drive and we had no engine so the Brawn Mercedes is fantastic altogether, car and team, and we have to be very happy with that. Hopefully we will win the constructors'."