Nico Rosberg was fastest in a Mercedes-dominated final practice session ahead of the Malaysian Grand Prix this morning.
The German, who won the season opener in Australia two weeks ago, was marginally quicker than teammate Lewis Hamilton.
Kimi Raikkonen was third-fastest, while Sebastian Vettel, Nico Hulkenberg, Daniel Ricciardo, Fernando Alonso, Felipe Massa, Valtteri Bottas and Sergio Perez completed the top 10.
McLaren endured a torrid session, with Kevin Magnussen and Jenson Button managing just eight laps between them due to a sensor problem on their power unit.
Full standings:
1. Nico Rosberg (Mercedes)
2. Lewis Hamilton (Mercedes)
3. Kimi Raikkonen (Ferrari)
4. Sebastian Vettel (Red Bull)
5. Nico Hulkenberg (Force India)
6. Daniel Ricciardo (Red Bull)
7. Fernando Alonso (Ferrari)
8. Felipe Massa (Williams)
9. Valtteri Bottas (Williams)
10. Sergio Perez (Force India)
11. Daniil Kvyat (Toro Rosso)
12. Jean-Eric Vergne (Toro Rosso)
13. Adrian Sutil (Sauber)
14. Esteban Gutierrez (Sauber)
15. Romain Grosjean (Lotus)
16. Pastor Maldonado (Lotus)
17. Max Chilton (Marussia)
18. Jules Bianchi (Marussia)
19. Marcus Ericsson (Caterham)
20. Kamui Kobayashi (Caterham)
21. Jenson Button (McLaren)
22. Kevin Magnussen (McLaren)
