Title-chasing Lewis Hamilton said it was his own fault that he qualified only fifth on the grid after his Mercedes team-mate Valtteri Bottas took pole position for Sunday's United States Grand Prix.
Disappointed in his own performance after struggling to produce a complete lap at his best, the world champion-elect said he had no-one to blame, but himself.
"It's nothing to do with the car. I just didn't manage to put the laps together today and the car clearly had the capability to be on the front row," he said.
"It was just me, not the car, but I can still do it tomorrow. It was my fault and I will do all I can to rectify it tomorrow. Honestly, I am not thinking about it now -- I'm just trying to digest what's happened and to reflect on it."