Postpublished at 11:35
The two Ferraris 18th and 20th at the moment. No, wait, Sebastian Vettel has just seriously upped his pace and goes third, just 0.259 behind Rosberg.
That's more like it. Maybe they will be able to keep the Mercs honest.
Summary
Hamilton hits wall, handing pole to Rosberg
Perez 2nd but will start 7th after penalty
Ricciardo inherits 2nd, Vettel 3rd
Race coverage from 12:30 BST on Sunday
Postpublished at 11:35
Rosberg puts the power downpublished at 11:32
Nico Rosberg is currently nearly 7kph faster than all the other drivers...
Postpublished at 11:29
The Mercs are still looking the class of the field, with almost a second separating second-fastest Lewis Hamilton and Daniel Ricciardo in third.
Image source, Getty ImagesBottas in race against timepublished at 11:26
The key word here is "hoping".
That really isn't good.
Remember this is a 60-minute session and we're already 25 minutes into it.
Postpublished at 11:24
Lewis Hamilton just over a tenth down on Rosberg, while McLaren's Jenson Button goes fourth.
Rosberg then ups the pace to go a tenth quicker himself with 1.45.435.
Image source, Getty ImagesNot going smoothly for Williamspublished at 11:22
Postpublished at 11:21
Nico Rosberg is the first man today into the 1.45s, over a second faster than second-quickest Ricciardo.
Mercerdes team-mate Lewis Hamilton has completed his first full lap but he was taking it easy.
Bottas' hopes down the drain?published at 11:19
Probably not but the rogue cover hasn't helped Valtteri's prep for qualifying.
Postpublished at 11:18
Ferrari say they are currently doing race prep, while McLaren report that the track temperature is 10 degrees Celsius hotter than in FP2.
That might be a big help to Ferrari and Red Bull after their struggles on Friday.
Image source, Getty ImagesMerc looking to up the pacepublished at 11:16
Postpublished at 11:14
Red Bull's Daniel Ricciardo goes quickest with a 1:46.685 with team-mate Max Verstappen in second.
Unfortunately for Valtteri Bottas that rogue drain cover has done more than just superficial damage and the Williams mechanics are having to work hard to patch up his car and get him back out in this session.
Hugely, hugely frustrating.
Image source, Getty ImagesHulkenberg fastestpublished at 11:09
Nico Hulkenberg fastest at the moment for Force India with a 1.47.193.
Nico Rosberg has completed an exploratory lap 6.5secs off the pace but Lewis Hamilton went straight back into the pits.
More circuit issuespublished at 11:06
Oh dear. Trouble already in the pit lane as Valtteri Bottas has damaged a sidepod on his Williams after a drain cover came loose.
The Finn is getting out of the car.
A traffic cone is placed in front of the drain cover. No expense spared in F1.
Postpublished at 11:03
The two Haas drivers lead the way with Ferrari's Kimi Raikkonen also out early.
The Finn was 13th in FP2 on Friday as the red cars struggled badly.
McLaren's Fernando Alonso out too and the Spaniard believes he can reach the final stage of qualifying later.
Go! Go! Go!published at 11:00
We're all green and FP3 is under way...
It's hotting uppublished at 10:58
Just two minutes before FP3 is go, go, go.
Ferrari struggling with tyrespublished at 10:57
Andrew Benson
Chief F1 writer in Baku
Image source, Getty ImagesAt Ferrari, it was a familiar story of struggling to get the tyres to work - and it was pretty bad, because the red cars were two seconds off the pace after challenging for victory with Sebastian Vettel in Canada last weekend. "When everything worked the balance was kind of OK," Kimi Raikkonen said.
"But it was more about trying to get the tyres to work for one lap and this seems to be a difficulty right now. They don't work exactly like we want and the challenge is to switch them on. More laps seem to help but over one lap it's clear we need to find something to get the grip out of them."
Red Bull were having a similar difficulty, but Daniel Ricciardo was confident they would sort it out for Saturday.
Listen in on 5 live sports extrapublished at 10:55
A reminder that Radio 5 live sports extra's coverage of FP3 is getting under way now.
Click on the live coverage tab if you want to listen in while following this live text commentary.
Was Rosberg point-scoring over Hamilton?published at 10:54
Andrew Benson
Chief F1 writer in Baku
Image source, APNico Rosberg admitted after practice on Friday that he "had some work to do" to catch his team-mate. But it had done little to dampen his mood.
Early for the drivers’ briefing in the evening, he popped into the media centre to have a chat with the English journalists about the track. And was that a bit of point-scoring he was up to elsewhere? After Hamilton opined that his fellow drivers complained too much about issues such as bumps on the track and safety, Rosberg was quick to claim that, in private in the Mercedes debrief, Hamilton had been expressing exactly the same opinions.
'I really had my heart in my mouth'published at 10:52
Andrew Benson
Chief F1 writer in Baku
Image source, AFPLewis Hamilton has been revelling in the challenge of a slippery street track, with concrete walls waiting to pounce on any mistake. Hamilton did hit the wall - twice at the same point - but it was only a brush each time, and he did it while operating on a separate level from the rest.
"The circuit was very slippery in the morning when we first went out," Hamilton said, "but then the better part of that being it has a combination of corners like Monaco and really having to commit to corners with barriers on the exit, which is really tricky.
"We are doing 220mph down the main straight, 200mph down some of the others. and then commit to the corners. I tell you, I really had my heart in my mouth, It is a real challenge to be on the limit but I am feeling pretty much at home."