Image source, Getty Images

Lewis Hamilton now quickest, the Briton clocking a 1:41.750, just over a tenth clear of Mercedes team-mate Nico Rosberg.

1) Ham 2) Ros 3) But 4) Kvy 5) Bot 6) Mag 7) Alo 8) Per 9) Mas 10) Vet

Nico Rosberg squeezes into top spot with a 1:41.882, 0.046 seconds quicker than McLaren's Jenson Button.

Romain Grosjean: "I don't know guys, the car is all over the place."

Valtteri Bottas has a fleeting return to the top, but he's toppled by Jenson Button who clocks the fastest time of the day - 1:41.928 - seven tenths quicker than anyone else. Lewis Hamilton and Nico Rosberg have yet to complete representative timed laps.

Everyone has been out for a spin apart from Red Bull's Daniel Ricciardo and Williams' Felipe Massa.

We have our extra camera streams function working for you across practice for the Russian GP instead of just qualifying and the race.

Right now you can access the driver tracker, pit lane feed, onboard and live timing above this text commentary.

Jenson Button is our new leader, the 2009 world champion clocking a 1:43.155, eight tenths quicker than his McLaren team-mate Kevin Magnussen in second.

Finn Valtteri Bottas is the early pace-setter, the Williams driver, who missed the final half hour of first practice because the team's tyre blankets malfunctioned and ruined a set of his tyres, clocks a 1:44.352.

Derek Custer:, external So far so good for @McLarenF1. Is this the start of the turnaround for the car? Hopefully that Honda engine will be good.

Kamui Kobayashi is back in the car at Caterham, while Esteban Gutierrez reclaims his Sauber, too.

Here we go, then. Let second practice begin.

Hit the Red Button or click play at the top of the page as The Chain is ringing out ahead of live coverage of second practice. This is your five-minute warning until the start of the session.

Image source, AFP

McLaren are showing promising form so far in Sochi, with Jenson Button (pictured) third fastest, just two tenths of Nico Rosberg's leading pace in first practice with team-mate Kevin Magnussen fifth.

Lewis Hamilton leads the way in the drivers' standings, a run of three successive victories as catapulted him to the top of the pile, 10 points clear of Mercedes team-mate Nico Rosberg, who he has spent most of the season chasing.

Sochi hosted the Winter Olympics and Paralympics earlier this year, but even before them, work was under way constructing the circuit, which hosts this weekend's race, as you can see here in this snap, taken back in February.

Image source, Getty Images

So what are your initial thoughts on the Sochi Autodrom? Do you think the venue has all the ingredients to deliver an exciting race on Sunday? Or are we in for a Valencia-style procession?

Tweet us using the #bbcf1, text 81111 or leave a comment on the BBC Sport Facebook page. And if you missed the first session and haven't seen the new track, you can watch it again here or via the video console at the top of the page.

The second session starts at 11:00 BST and will last 90 minutes.

The drivers will do a low-fuel run mid-way through the session before switching their attention to long-runs, with high fuel, as they begin preparations for Sunday's race.

With no previous data to work with, as this is a new venue, this session is very, very important.

Image source, AP

Marussia built Jules Bianchi's car, which has been scrutineered and is ready to race, and it will remain on his side of the garage throughout the weekend.

The team have decided to only run on car - Max Chilton - as they feel it "is the appropriate course of action under the difficult circumstances of the weekend".

Image source, Getty Images

Hello and welcome to our live coverage of second practice for the Russian Grand Prix at the Sochi Autodrom. There we doubts that the race would go ahead with Ari Vatanen - who is a close ally of FIA president Jean Todt - calling for the race to be cancelled., external

But Bernie Ecclestone got his wish, after seeing plans for races in St Petersburg and Moscow collapse, with a stunning venue which weaves its way around the Sochi Olympic Park, which hosts the Winter Games in February.

Image source, AP

The last few days have been difficult for the F1 fraternity, their thoughts with Jules Bianchi who is in a critical but stable condition with severe head injuries after crashing in Sunday's Japanese Grand Prix.

Nico Rosberg, pace-setter in this morning's first practice session, has the slogan "Tous avec Jules #17" on his helmet - as do all the drivers.

In this image, the message #KeepFightingMichael remains on the headrest in support of seven-time F1 champion Michael Schumacher, who continues his recovery at home after suffering a head injury in a skiing accident last December.