Red Bull's Sebastian Vettel has insisted that he is not feeling any pressure ahead of the Brazilian Grand Prix on Sunday.

The German, who leads the world championship race by 13 points, finished fourth in the qualifying session on Saturday.

"No, to be honest," he said when asked if his position was the result of pressure. "I did a mistake in the first run of Q3 but not because this is the last race or whatsoever. I'm pushing and that's what I try to do all the time.

"I did a mistake, lost quite a bit, I went wide, lost momentum and more than half a second was gone. The first run wasn't clean, so I thought I had one run left and it was quite important to make sure I get a decent lap.

"It wasn't the lap of my life, I have to admit. There was a little but more to come. With hindsight I was a little bit shy but if you haven't got a lap in that's what you do."

Vettel will win the world championship for the third year in a row if he finishes fourth or higher in Brazil.