Red Bull driver Mark Webber has gone quickest in third practice ahead of the Japanese Grand Prix at Suzuka.
The Australian came in ahead of Mercedes' Lewis Hamilton and Nico Rosberg, while Romain Grosjean came home fourth fastest.
Reigning champion and current championship leader Sebastian Vettel had problems with his battery and could only post the ninth-fastest time.
Ferrari duo Fernando Alonso and Felipe Massa finished back to back once again, with this time the Spaniard getting the better of his teammate into fifth.
Jenson Button and Kimi Raikkonen came in ahead of Vettel, with Nico Hulkenberg finishing 10th.
Qualifying for Sunday's race begins at 6am.
Fll standings:
1. Mark Webber (Red Bull)
2. Lewis Hamilton (Mercedes)
3. Nico Rosberg (Mercedes)
4. Romain Grosjean (Lotus Renault)
5. Fernando Alonso (Ferrari)
6. Felipe Massa (Ferrari)
7. Jenson Button (McLaren)
8. Kimi Raikkonen (Lotus Renault)
9. Sebastian Vettel (Red Bull)
10. Nico Hulkenberg (Sauber)
11. Sergio Perez (McLaren)
12. Jean-Eric Vergne (Toro Rosso)
13. Daniel Ricciardo (Toro Rosso)
14. Pastor Maldonado (Williams)
15. Paul di Resta (Force India)
16. Esteban Gutierrez (Sauber)
17. Veleri Bottas (Williams)
18. Adrian Sutil (Force India)
19. Giemo van der Garde (Caterham)
20. Charles Pic (Caterham)
21. Max Chilton (Marussia)
22. Jules Bianchi (Marussia)
