Jenson Button has posted the fastest time in a rain-interrupted second practice session in Monte Carlo.
Romain Grosjean managed to replicate his pace from the first session by clocking the second fastest time, while Ferrari's Felipe Massa came in third.
Fernando Alonso finished just behind his Ferrari teammate in fourth, but Lewis Hamilton could only manage 11th as the rain started to fall.
Mark Webber was the quickest on the wet track for Red Bull, which was only good enough for seventh.
1. Jenson Button - 1:15.746
2. Romain Grosjean - 1:16.138
3. Felipe Massa - 1:16.602
4. Fernando Alonso - 1:16.661
5. Pastor Maldonado - 1:16.820
6. Nico Rosberg - 1:17.021
7. Mark Webber - 1:17.148
8. Kamui Kobayashi - 1:17.153
9. Michael Schumacher - 1:17.293
10. Sebastian Vettel - 1:17.303