McLaren's Jenson Button has written off the world championship hopes of Red Bull rival Sebastian Vettel.
Neither driver scored any points at Sunday's Belgian Grand Prix after Vettel collided with Button on lap 16 at Spa and took both of them out.
Button's McLaren team-mate Lewis Hamilton went on to win the race and moved to the top of the drivers' standings with six races remaining in the season.
Vettel and Button remain in touching distance but the German has made too many mistakes this season, according to the aggrieved Briton.
"He just made a mistake and for me it was a big mistake that cost me a lot of points," he declared.
"It was a very costly mistake and I'm the person who has paid for it, but he's made a couple of them this year.
"I'm not saying he's dangerous, I'm saying that for me he has made too many mistakes this year to fight for the world championship.
"But he is extremely quick, we can't take that away from him, and to get seven poles is extraordinary in the amount of races we have had.
"But to throw that many away is also very surprising."