Summary
Hamilton fastest in rain-interrupted session, Raikkonen second
Saturday's final practice and qualifying live on BBC Sport website
Raikkonen fastest in first practice, Massa crashes heavily
Vettel leads Hamilton by 14 points in title race
Live Reporting
Gary Rose
Latest timespublished at 09:50 British Summer Time 25 August 2017
Get involved #bbcf1published at 09:48 British Summer Time 25 August 2017
09:48 BST 25 August 2017Kayleigh: Do I win for most boring summer break- dyed hair, and crocheted a little sheep?
Postpublished at 09:47 British Summer Time 25 August 2017
09:47 BST 25 August 2017Fernando Alonso has been out on the track after his power problem early doors. Now there's an issue with his DRS flag that needs sorting.
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Postpublished at 09:45 British Summer Time 25 August 2017
09:45 BST 25 August 2017Valtteri Bottas, not mentioned him for a while. The Finn, who is just 19 points behind Lewis Hamilton in the drivers' championship, is P3, four tenths of a second down on Lewis Hamilton's time.
Postpublished at 09:43 British Summer Time 25 August 2017
09:43 BST 25 August 2017"Find me a gap," asks Lewis Hamilton, who has got himself stuck in a bit of traffic.
The gap is swiftly found and Hamilton goes quickest of all courtesy of a 1:46.439.
We're already well past Nico Rosberg's time of 1:48.348 in first practice last year.
Postpublished at 09:41 British Summer Time 25 August 2017
09:41 BST 25 August 2017First job for Guy Martin as he is instructed to pop a blanket over Felipe Massa's mashed up Williams.
Easing him in.
Postpublished at 09:40 British Summer Time 25 August 2017
09:40 BST 25 August 2017Daniel Ricciardo improves his timesheet-topping time with a 1:46.656 but he's now got Kimi Raikkonen for company up there. The Ferrari man has just done a 1:46.931 on super-softs.
Get involved #bbcf1published at 09:39 British Summer Time 25 August 2017
09:39 BST 25 August 2017Stewart: Driver of the season has to be Alonso so far for the #Indy500, external and his performances in that McLaren - when it works.
Postpublished at 09:38 British Summer Time 25 August 2017
09:38 BST 25 August 2017Pascal Wehrlein is currently in the Sauber garage and he's kicking off the second half of the season with a brand-spanking new hairstyle.
Postpublished at 09:36 British Summer Time 25 August 2017
09:36 BST 25 August 2017Daniel Ricciardo, on ultrasofts, goes quickest with a 1:46.838, half a second quicker than Lewis Hamilton but the Briton is on the slower supersofts.
Postpublished at 09:35 British Summer Time 25 August 2017
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Postpublished at 09:35 British Summer Time 25 August 2017
09:35 BST 25 August 2017I think I speak for everyone that having Kimi Raikkonen around for another year is good for Formula 1.
The Finn signed a new deal at Ferrari that will see him remain at the team until at least the end of 2018.
How much do you know about Raikkonen? Take our quiz to find out.
Top five timespublished at 09:33 British Summer Time 25 August 2017
09:33 BST 25 August 20171. Hamilton 1:47.410 (supersofts)
2. Ricciardo +.258 (ultrasofts)
3. Verstappen +0.333 (ultrasofts)
4. Raikkonen +0.487 (supersofts)
5. Vettel +0.620 (softs)
Postpublished at 09:31 British Summer Time 25 August 2017
09:31 BST 25 August 2017Some post-summer break rustiness at Haas as Kevin Magnussen's headrest comes loose as he circulates. In he goes to get that one sorted.
Meanwhile, there's some quicker laps coming in now as Lewis Hamilton goes P1 with his first effort - a 1:47.410.
Missed a bitpublished at 09:29 British Summer Time 25 August 2017
09:29 BST 25 August 2017There's plenty of glamourous jobs to be had in Formula 1.
This is not one of them.
Postpublished at 09:28 British Summer Time 25 August 2017
09:28 BST 25 August 2017Esteban Ocon managed to sneak in a time before Felipe Massa crashed.
The Force India man did a 1:48.962 on super-softs.
Postpublished at 09:26 British Summer Time 25 August 2017
09:26 BST 25 August 2017A flurry of activity as the teams have just nine more minutes to use their first set of tyres before handing them back.
Go! Go! Go!published at 09:25 British Summer Time 25 August 2017
09:25 BST 25 August 2017Felipe Massa's car is lifted off the track and we are back up and running with just over an hour left on the clock.
Postpublished at 09:23 British Summer Time 25 August 2017
09:23 BST 25 August 2017Get your spanner out, Martin. Looks like a lot of damage done to the car there.
Postpublished at 09:22 British Summer Time 25 August 2017
09:22 BST 25 August 2017TV personality and motorbike rider Guy Martin is part of the Williams pit crew in Belgium.
That crash for Felipe Massa makes for a busy start to the weekend for the man from Grimsby.