Raikkonen fastest in second practice, Hamilton 4th
Final practice Saturday 13:00 BST, qualifying at 16:00
Ricciardo top in first practice, Hamilton only 5th
Get involved: Your plan for F1; how would you improve it? #bbcf1
And that is where this live page will end today. Thank you for joining us and for all your comments.
The third practice session starts at 13:00 BST on Saturday and we will be up and running at 12:30 BST so hopefully you can join us then. See you tomorrow.
Image source, F1
Image source, Getty ImagesKimi Raikkonen headed Sebastian Vettel to a Ferrari one-two in second practice at the Bahrain Grand Prix. Mercedes appeared to be struggling - Valtteri Bottas was third and 0.563 seconds off the pace, with team-mate Lewis Hamilton 0.092secs adrift.
Hamilton was blocked by Haas driver Kevin Magnussen at the last corner on his fastest lap but was already 0.4secs off the pace before that happened. Red Bull's Max Verstappen was fifth, ahead of team-mate Daniel Ricciardo, who was also blocked on his fastest lap - by Bottas.
It is always hard to draw an accurate conclusion as to the competitive picture from practice and that was made even more difficult in this session because both Hamilton and Raikkonen encountered problems on their fastest laps.
Raikkonen suffered a lack of front grip at the final corner and lost time, while Hamilton had his trouble with Magnussen.
The world champion also had to abandon his first lap on the fastest super-soft tyres after running wide at the first corner when he locked his brakes. That would have meant his tyres were not at their absolute optimum when Hamilton did his next lap.
Ferrari - 1st and 2nd (Raikkonen and Vettel)
Mercedes - 3rd and 4th (Bottas and Hamilton)
Red Bull - 5th and 6th (Verstappen and Ricciardo)
Renault - 7th and 12th (Hulkenberg and Sainz)
Toro Rosso - 8th and 20th (Gasly and Hartley)
McLaren - 9th and 10th (Alonso and Vandoorne)
Haas - 11th and 15th (Grosjean and Magnussen)
Force India - 13th and 14th (Ocon and Perez)
Sauber - 16th and 19th (Leclerc and Ericsson)
Williams - 17th and 18th (Stroll and Sirotkin)
Kimi Raikkonen's session ended in frustration, but he is still the quickest man in FP2.
Red Bull's Daniel Ricciardo was quickest earlier on in session one. Work for Mercedes to do.
Image source, Getty ImagesWe are hearing Kimi Raikkonen is being investigated for "an unsafe release" from that pit stop. He then came to a halt pretty much immediately on the track.
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Remember, there is still time to predict the future. We are asking you to predict the top three for Sunday's race.
Play along with our page here.
Your plans for F1 / How would you improve F1?
Paul Marchand: How about you stop penalising drivers for stupidities like going off the track. They are racers.. not babies.
Stephen Jones: Get rid of the amount of tyres choices per race Bring in tyre wars cars use different fuel why not tyres. Bring back fuel stops!
Naeem: Changes for F1: Bring back re-fuelling, adds another tactical level to the sport which is missed. Changes to the cars to allow closer following and overtakes. Get rid of the qualy tyre rule and allow everyone to start on fresh tyres #bbcf1, external
Ten minutes of this session left.
Image source, Getty ImagesKimi Raikkonen is the quickest man in the session, but it is not ending as he would have liked.
He has to pull over on to the side of the track, near turn three, and Ferrari will now have an issue to deal with.
It appears there could have been a problem when he came out of the pits and there was some frantic waving from some of the Ferrari mechanics. Raikkonen will be hoping it is nothing too serious.
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Image source, Getty ImagesThe Monaco and Russian Grands Prix have indicated they will defy F1's decision not to use grid girls at races.
Owners Liberty Media said in January it would stop using female models and replace them with 'grid kids'.
Monaco organiser Michel Boeri said his only "problem" with Liberty was "the grid-girl issue," adding: "They're pretty. The cameras will be on them."
Lewis Hamilton appeared to back the move with a post on his Instagram account. The world champion published a grab of a picture of some grid girls from another Instagram user with the message: "Thank you Jesus."
The image has since been removed.
Monaco's move comes after the Russian deputy prime minister Dmitry Kozak, who heads the Russian GP organising committee, said he thought it was "wrong" to bring children onto the track because they would be "scared".
Image source, .These are the times to pay attention to in this second session. We are not expecting any of these to be improved, but you never know.
Image source, F1Just over 20 minutes left to go today. Remember, we have one more practice session and that comes at 13:00 BST on Saturday, before qualifying tomorrow at 16:00 BST.
Then, the main event starts at 16:10 BST on Sunday.
We will have live text commentary and live radio 5 live commentary from all of those sessions.
Charles Leclerc, the 20-year-old from Monaco who won the FIA Formula 2 Championship title last season, is continuing to impress at the beginning of his Formula 1 career.
He came 13th in his Sauber in Australia a couple of weeks ago and is 16th today, but faster than his much more experienced team-mate Marcus Ericsson, the Williams pair of Lance Stroll and Sergey Sirotkin and Toro Rosso's Brendon Hartley, who is the slowest in this second session.
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So, what of the others? Esteban Ocon tried to reassure everyone earlier and tell the critics that there was "no panic at Force India".
They came fourth in the constructors' championship last season, but picked up zero points in Australia and their men are down in 13th (Ocon) and 14th (Sergio Perez) today. They will be hoping for better for the rest of this weekend.
Image source, Rex FeaturesYour plans for F1 / How would you improve F1?
Paul Manning: Make all car component designs available to all teams for the next season. Means lesser teams get access to high end tech.
Peter Hore: How would reverse quali order for the race work? Most just wouldn't bother trying with qualifying so they start at the front! Reverse finishing order of the last race would be slightly better. Slightly.
Daniel Eckersley: Reduce the amount of practice and make Q3 superpole format - a more natural way of potentially introducing mixed up grids.
Cleggton: Points for all positions will improve competition up and down the grid. Also encourages team to run to finish. Cheap to implement
The best of the rest title (seventh place for the rest of us) goes to Nico Hulkenberg at the moment, followed by Pierre Gasly and the McLarens of Fernando Alonso and Stoffel Vanbdoorne.
Image source, Getty ImagesSome drivers are moving on to their long runs or practice starts and getting themselves ready for qualifying tomorrow.
The top six features only drivers from the top three teams. We have two Ferraris (Raikkonen and Vettel), two Mercedes (Bottas and Hamilton) and two Red Bulls (Verstappen and Ricciardo)
Image source, Reuters
Image source, Getty ImagesMore from an unhappy Max Verstappen. He sounds worried and says: "I'm so slow in this straight it is unbelievable."
"Yeah, don't worry about that," is the not-too-helpful response he gets.
Jolyon Palmer
Former Renault driver on BBC Radio 5 live
Both Williams have been erratic and both have spun today.
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Bad news Williams fans, your lads are struggling. Lance Stroll is down in 17th, with Sergey Sirotkin in 18th.