1) Hamilton 2) Rosberg 3) Verstappen 4) Ricciardo 5) Vettel 6) Perez 7) Raikkonen 8) Sainz 9) Massa 10) Ericsson

Tom Clarkson
BBC Radio 5 live commentator

The two Mercedes' set ups are slightly different and that suggests they will be approaching the race in a slightly different way. Or will the set ups converge after these two sessions of practice?"

Image source, AP

"What's the target time," asks Lewis Hamilton.

"Nico, 47.6 that one, 47.6.

Several teams have switched to a long runs programme as we enter the final 10 minutes of the session, although some are still out there looking for lap time improvements. 

The Saubers and the Toro Rosso of Carlos Sainz have super softs on. Marcus Ericsson leaps up to 10th with a 1:45.168 while Felipe Nasr is 13th. Sainz, meanwhile, goes eighth quickest.

Mercedes boss Toto Wolff plays down the possibility of team-mates Lewis Hamilton and Nico Rosberg coming together during the title-deciding Abu Dhabi Grand Prix, saying they both "understand what the objectives are". 

Watch the interview below.

Romain Grosjean's session is over. He'd been having issues with his brakes and Haas are going to take a closer look.

Jenson Button's McLaren is still being worked on. Will he get back out before the end? Just 15 minutes to go.

No major changes on the timesheets at the moment.

Andrew Benson
Chief F1 writer in Abu Dhabi

The 2017 Formula 1 calendar is beginning to take shape and it looks set to have one less race than this year. 

The German Grand Prix looks like it will not happen - the organiser at Hockenheim has told Germany’s Sport Bild that attempts to strike a deal have failed. That means Hungary will likely move back a week to Germany’s former date at the end of July, making a three-week gap between that and Silverstone on 9 July. Canada and Brazil, though, over which there were question marks now look likely to survive and, Germany aside, the calendar will have a very similar shape to this year. The main difference being China is set to become the second race, two weeks after Australia’s 26 March opening date, and Bahrain is the third race, a week after China.    

Amit Mandalia: I feel old knowing I've seen Button's whole F1 career. Remember reading about shootout with Junqueria in F1 Racing magazine in '99 

Christopher: Started my first job after uni around the time Button was announced for Williams. Doubt I'll be retiring anytime soon! 

Edward Letherby: Gutted that I didn't get a pic with Jenson at the British Grand Prix this year now that his retirement is confirmed.

Image source, Rex Features

Impressive stuff from Force India in this session with Sergio Perez sixth and Alfonso Celis ninth.

Image source, Rex Features

Here's another look inside the Button family album - an excellent picture of dad and lad. 

Lewis Hamilton, on the softs, improves a touch, doing a 1:42.869. He's three tenths quicker than Nico Rosberg.

Behind the Mercedes pair on the timesheet are: 3) Verstappen 4) Ricciardo 5) Perez 6) Raikkonen 7) Vettel 8) Massa 9) Celis 10) Grosjean

Jenson Button is asked to drive back to the pits slowly, which he does. He's back at the McLaren garage and out of his car now.

Massive lock up for Romain Grosjean and he goes straight off at Turn One. 

He's straight on the radio and is sound increasingly frustrated. "Errrr I don't know what happened. The brakes braked," he says.

Hmm. Something not quite right for Jenson Button it seems. He comes through the final corner at a snail's pace. Hopefully nothing too serious.

Olly's Andromeda: Watching him at preseason testing in Spain 2006. He was my hero, and we spoke for ages about his home town, near mine

Ben Thompson: Papa Smurf’s reaction when JB overtook Vettel in Canada and his ecstatic, proud smile when JB won the title with Brawn

Jeremiah Kariuki: Button's moments at Suzuka! And the smiles of his ex-wife when he was winning in wet conditions at the stands.   

Image source, Getty Images