Button: "It's not over"

SINGAPORE, Sept 25, 2011 (AFP) - Jenson Button refused to give up on the world championship on Sunday after Sebastian Vettel won the Singapore Grand Prix to move within a whisker of retaining his crown.

Button, of McLaren, needs to win all five remaining races with Vettel failing to score a point if he is to upset all forecasts and take the title. Vettel needs just one point to be the youngest double champion. Briton Button, a former world champion himself, said: "I feel capable, but I still have to do it.

"With the races we had so far, it should not be a problem. But it is over when it is over and this one has to wait to be closed first.

"The team is doing a great job. I am feeling very comfortable with the team, with the car and we are on top of our game.

"There is no secret, but it is just everyone is able to rely on the other one and together we are pulling in the same direction, one direction. I think it is very enjoyable at the moment.

"The car is fantastic and most of the time I have good Sunday afternoons or Sunday evenings."