Championship leader Sebastian Vettel this evening won pole position for tomorrow's grand prix in Texas after a close battle with McLaren's Lewis Hamilton, who starts from P2.
Vettel's Red Bull team mate Mark Webber starts third.
Ferrari's Fernando Alonso, the only man who can challenge Vettel for a third driver's crown, starts eighth while his team mate Felipe Massa is sixth.
Hamilton's team mate Jenson Button starts 12th, with McLaren having suffered yet another technical problem.
Vettel will win the championship if he comes first tomorrow and Alonso is not higher than fifth.
THE GRID
1. Sebastian Vettel (Germany) RedBull - Renault
2. Lewis Hamilton (Britain) McLaren
3. Mark Webber (Australia) RedBull - Renault
4. Kimi Raikkonen (Finland) Lotus - Renault
5. Michael Schumacher (Germany) Mercedes
6. Felipe Massa (Brazil) Ferrari
7. Nico Huelkenberg (Germany) Force India - Mercedes
8. Fernando Alonso (Spain) Ferrari
9. Romain Grosjean (France) Lotus - Renault
10. Pastor Maldonado (Venezuela) Williams - Renault
11. Bruno Senna (Brazil) Williams - Renault
12. Jenson Button (Britain) McLaren
13. Paul Di Resta (Britain) Force India - Mercedes
14. Jean-Eric Vergne (France) Toro Rosso - Ferrari
15. Sergio Perez (Mexico) Sauber - Ferrari
16. Kamui Kobayashi (Japan) Sauber - Ferrari
17. Nico Rosberg (Germany) Mercedes
18. Daniel Ricciardo (Australia) Toro Rosso - Ferrari
19. Timo Glock (Germany) Marussia - Cosworth
20. Charles Pic (France) Marussia - Cosworth
21. Vitaly Petrov (Russia) Caterham - Renault
22. Heikki Kovalainen (Finland) Caterham - Renault
23. Pedro de la Rosa (Spain) HRT - Cosworth
24. Narain Karthikeyan (India) HRT - Cosworth