Postpublished at 07:49 Greenwich Mean Time
Rookie Gabriel Bortoleto is the only driver out on track.
His Sauber is putting in the laps, but the 20-year-old runs wide and hits the gravel.
Summary
Three days of pre-season testing complete in Bahrain
Williams' Carlos Sainz sets quickest time overall with a 1:29.366
George Russell in the Mercedes fastest on final day
Lando Norris and McLaren top times on day one
Season-opening Australian Grand Prix takes place 14-16 March
Sunday's race starts at 04:00 GMT
Get involved: #BBCF1
Postpublished at 07:49 Greenwich Mean Time
Postpublished at 07:46 Greenwich Mean Time
Oliver Bearman is out of his car as the engineers work away at the Haas.
Isack Hadjar is speeding down the track, the right side of the Racing Bulls has been painted in fluorescent yellow flow-vis paint.
Laps completedpublished at 07:41 Greenwich Mean Time
Max Verstappen (Red Bull) - 7
Alex Albon (Williams) - 2
Lando Norris (McLaren) - 2
Charles Leclerc (Ferrari) - 6
Andrea Kimi Antonelli (Mercedes) - 5
Fernando Alonso (Aston Martin) - 2
Jack Doohan (Alpine) - 6
Oliver Bearman (Haas) - 5
Isack Hadjar (Racing Bulls) - 3
Gabriel Bortoleto (Sauber) - 6
Postpublished at 07:38 Greenwich Mean Time
Chris Medland
F1 journalist in BahrainIt looks like Oliver Bearman lost it at the start of the previous lap on the pit straight, when speeds are at their highest. The debris is sitting on the grass off-track so shouldn't require a red flag.
Postpublished at 07:36 Greenwich Mean Time
Charles Leclerc returns to the P1 spot, he's set a time of 1:30.861 and heads back to the garage.
Mercedes' Andrea Kimi Antonelli is second and Alex Albon in the Williams is third.
Yellow flagpublished at 07:31 Greenwich Mean Time
A quick yellow flag has been waved as the debris is collected.
Postpublished at 07:30 Greenwich Mean Time
Chris Medland
F1 journalist in BahrainOliver Bearman has to slow due to a bodywork failure on the Haas - he's got a big piece of the engine cover missing.
Postpublished at 07:29 Greenwich Mean Time
Max Verstappen is back in the Red Bull garage, the aero rakes are off. He is also on a full day of testing.
Oh dear, there's a part of Oliver Bearman's Haas wanting to fly off. The 19-year-old has been told by his engineers to return to the garage.
Postpublished at 07:24 Greenwich Mean Time
Williams' Alex Albon has been on a flying lap and jumps up to third on the leaderboard.
Albon will be in the Williams seat for the full day of testing.
Postpublished at 07:21 Greenwich Mean Time
Lando Norris has joined the race track this morning. The McLaren man has completed two laps and is yet to set a lap time.
Ferrari's Charles Leclerc is back in the garage.
Image source, Getty ImagesPostpublished at 07:18 Greenwich Mean Time
A quick fix for Fernando Alonso and he is back out on the track.
He manages Sauber rookie Gabriel Bortoleto, who won the F2 championship in 2024.
It will be interesting to see them on the grid together.
Postpublished at 07:15 Greenwich Mean Time
Mercedes rookie Andrea Kimi Antonelli was just four tenths behind Leclerc, but he has pipped him for the top spot, his time is now 1:31.189.
Jack Doohan is third, Gabriel Bortoleto fourth and Oliver Bearman fifth.
A good start to the day for the rookies.
Postpublished at 07:12 Greenwich Mean Time
Charles Leclerc has set the fastest lap time of the morning, the Ferrari man has also completed six laps, so far.
Postpublished at 07:08 Greenwich Mean Time
Fernando Alonso has stopped near the pitlane exit. A yellow flag is been waved as his team wheel him back to the Aston Martin garage.
Postpublished at 07:07 Greenwich Mean Time
Max Verstappen's Red Bull has aero rakes attached just behind his front wheels. The data will give the engineers important information about airflow around the car.
Morning driver schedulepublished at 07:05 Greenwich Mean Time
Max Verstappen - Red Bull*
Alex Albon - Williams*
Lando Norris - McLaren
Charles Leclerc - Ferrari
Andrea Kimi Antonelli - Mercedes
Fernando Alonso - Aston Martin
Jack Doohan - Alpine
Oliver Bearman - Haas
Isack Hadjar - Racing Bulls
Gabriel Bortoleto - Sauber
*All day
Postpublished at 07:03 Greenwich Mean Time
Max Verstappen is the first driver out in his Red Bull.
The four-time world champion will be in the driver's seat for the full day of testing.
Who else is joining him for the morning session?
Alonso in morning sessionpublished at 07:01 Greenwich Mean Time
Lance Stroll has not been feeling 100% overnight so Fernando Alonso will jump into the Aston Martin seat this morning.
The team have said they will confirm their line-up for the afternoon session in due course.
Welcomepublished at 07:00 Greenwich Mean Time
Image source, Getty ImagesGood morning everyone.
Welcome to day three of testing.
18 drivers will have their last chance to get to grips with the cars before lights out in Australia.