Good morning and welcome to our LIVE coverage of the final free practice session ahead of the Belgian Grand Prix.

Vettel comes off the pace in the middle sector and will come into the pits - he's already secured the best time going into qualifying, but with barely a cigarette paper between him and Alonso we could be in for a barnstorming qualifying session this afternoon. Join us for that at 1pm BST!

It's the end of the session, and Vettel is still out there with a chance to pull off one more quick time...

Nobody else bothering the top three as the clock ticks down to 0:00 - Maldonado was on a good-looking lap, but locked up into the final chicane as we've seen so many do today.

Vettel has come round for a flying lap now - and he's bested Alonso by a tenth of a second! It's a 1:48.327, the fastest time of the weekend so far by over a second.

Button has now gone fourth fastest now - nice lap from the McLaren man.

Raikkonen goes out on a flying lap on the medium tyre now, but he's over half a second slower than Alonso. ALonso's lap appears to have been genuinely very quick.

Alonso clocks 1:48.432 seconds, also on the medium tyre - he's fastest man so far by seven tenths of a second, and 1.4 seconds better than he was on the hard tyre.

Alonso six tenths up on Sutil half-way through the lap!

1:49.135 for Adrian Sutil as he goes out on the medium compound tyres - and he's quickest! But Alonso is now on a good-looking lap...

Adrian Sutil out on a flyer now, and looking good - he's fastest so far with just the final sector left.

Lewis Hamilton just seventh on the timesheets this morning, still not happy with his set-up.

Vergne still top of the tables, and he's told over the pit radio that his team think he's a genuine 0.8 seconds a lap faster than cars not running either Ferrari or Renault engines.

Vettel's form this morning - and that of sister team Toro Rosso with a Ferrari powerplant - is ominous for rivals hoping to pick up points on him this weekend.

Sorry Fernando, someone keeping you up?

Vettel is coming around at the end of his lap, and he's second fastest, 0.277 down on Vergne, despite his best attempts to look like he's driving in a rally.

Vettel comes off the track and goes into the dirt at the top of the hill at the end of the Kemmel Straight - mud flies everywhere, all over the track. Tsk, tsk. Mucky pup. I hope he'll go out with his broom after the session and help clean up.

Felipe Massa talking to his mechanic in the garage on the TV monitors - and brilliantly, the mechanic takes care to cover his mouth while chatting to make sure nobody from one of the other teams can lip read him!

Pastor Maldonado becomes the latest man to almost go into the sidewall in that section between turns 13 and 14.

Webber comes in just over 1:50 with that flying lap, and given how neat he looked throughout I'd suspect that was a decent time on a fuel-laden car.

Webber looking very tidy throughout here....