United States Grand Prix: Red Bull dominate qualifying in Texas

Red Bull's Sebastian Vettel and Mark Webber dominate qualifying for the United States Grand Prix at the Circuit of the Americas.

Vettel pipped his team-mate with a stunning final sector to claim pole position by 0.103secs, with Lotus's Romain Grosjean third ahead of Sauber's Nico Hulkenberg and Mercedes' Lewis Hamilton.

McLaren's Jenson Button was 12th but will drop to 15th after a penalty for ignoring red flags in Friday practice, while Valtteri Bottas put in a career-best performance in the dry to claim ninth for Williams.

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