Morning all and welcome to free practice three ahead of the Malaysian Grand Prix in Sepang. One last hour for the drivers and teams to get themselves ready for qualifying.

See you back here for qualifying at 08:00 GMT - and in the meantime you can join me on Twitter.

Rosberg really raised the bar at the end of that session, but it was interesting to see only 0.2s worth of difference between Vettel in 2nd and Maldonado in 7th. Plenty to talk about, and we'll see how qualifying turns out in just two hours.

So the final top 10: Rosberg, Vettel, Webber, Raikkonen, Grosjean, Button, Maldonado, Schumacher, Hamilton, Kobayashi

The Red Bulls also don't better their marks - so Rosberg is top of the teamsheets.

No improvement from Button, who stays sixth - the two Red Bulls both out still.

Drivers can finish their final laps, a few to watch out for...

Schumacher crosses the line without improving as the session draws to a close - but he looks to have a few laps worth of fuel on board.

Every car out on track, so there could still be some changes on the timesheets. Everyone looks to have found a bit of space for their laps.

Hold on - Rosberg posts a 1:36.877 - that's very quick - it's blown some of those times from McLaren and Red Bull out of the water! Are those two teams showing their full hand in practice?

1:37.320 from Vettel the new mark.

1:37.404 - a new fastest lap for all of about 10 seconds, before Webber and then Vettel shave a few more hundredths off that mark.

Button narrowly ahead of Maldonado's marker at sector two, but he has a Ferrari ahead of him - will he get in the way?

Hamilton on limited running comes in second, three-tenths down on Maldonado. Wouldn't be a surprise if he tried to squeeze out another lap. Alonso up to eighth.

Hamilton a tenth down at sector two on his quick lap... It's a good mark from Maldonado.

Kobayashi goes second on a 1:37.977 - good deal down on Williams. Here come the Red Bulls.

Schumacher next to head out, and Alonso also on track.

The track is getting faster all the time, but it will be interesting to see if anyone lays down a marker ahead of an important qualifying session at Sepang.

Out goes Hamilton on medium tyres - he's the man to break cover. The Saubers are also on track.

All the top drivers back in the pits. The calm before the storm.

Some big names absent from the top 10 for now - Button 13th, Alonso 14th, Massa 17th, Hamilton yet to post a time after that wobble on his hard tyre run.