Yuki Tsunoda has been putting in the laps for the Racing Bulls, he's up to 42.

Mav Verstappen has completed a race distance now, clocking in 57 laps.

At the Mercedes garage, George Russell is out of the car and the engineers are busy at work.

Lewis Hamilton is back out on the track in the Ferrari. He's five tenths behind the fastest time of Pierre Gasly.

Esteban Ocon has a new set of medium tyres bolted on his Haas and is zooming down the track. 32 laps for him now.

Alex Albon has been busy on day three of testing.

The Williams driver has been putting in the laps and has banked 93 so far.

Image source, Getty Images

Max Verstappen is back out on the circuit, his Red Bull has been sprayed with flow-vis paint on the right side.

Image source, Reuters

Lewis Hamilton is out on the Sakhir circuit now but before the afternoon session, the Ferrari driver was taking part in the news conference and he told Sky Sports how his pre-season testing is going so far.

"I think the last four years or so, I've learned you probably can't take too much from the first outlook," said the seven-time world champion.

"I definitely think past years before that, particularly in the previous generations of car, it was much easier, I think, to know where you stood quite early on, with that early feeling.

"I would say this is the most positive feeling I have had in a long time. That's all I can really say for now."

Ferrari's Lewis Hamilton is back out on the track and putting in the laps. He's on a new set of medium tyres.

Max Verstappen is back in the Red Bull garage.

Max Verstappen and Alex Albon are the two drivers out on the track.

They're both running a full day of testing.

1. Pierre Gasly (Alpine) - 1:30.040

2. George Russell (Mercedes) +0.014

3. Lewis Hamilton (Ferrari) +0.561

4. Charles Leclerc (Ferrari) +0.771

5. Oscar Piastri (McLaren) +0.787

Max Verstappen is back out on the track, it's not a great lap for the Red Bull driver and he looks like he's shaking his head. He goes for another lap.

Lance Stroll comes in for an Aston Martin pitstop, Yuki Tsunoda's car is having work done to it in the Racing Bulls garage.

Pierre Gasly is on a fast lap and jumps back to the top spot, it's a 1:30.040 for him.

Oscar Piastri (McLaren) - 12

Lewis Hamilton (Ferrari) - 15

George Russell (Mercedes) - 20

Max Verstappen (Red Bull)* - 47

Yuki Tsunoda (Racing Bulls) - 26

Pierre Gasly (Alpine) - 18

Alex Albon (Williams)* - 77

Lance Stroll (Aston Martin) - 13

Esteban Ocon (Haas) - 24

Nico Hulkenberg (Sauber) - 15

*All day

Four-time world champion Max Verstappen is getting ready to head out for his afternoon session.

Lewis Hamilton sets personal best times in all three sectors and jumps up to P3, his lap time is 1:30.601.

George Russell has paid a visit to the Mercedes pit and got himself a set of new medium tyres.

Oscar Piastri has set a lap time and is 11th fastest, he's clocked in 10 laps.

Engineer: "Wind has picked up"

Tsunoda: "Yeah wind has picked up a lot"

George Russell is on a flying lap, can he go faster than Pierre Gasly?

Yes, he can. It's a 1:30.054 for him.

At the Red Bull garage, Max Verstappen's car has been raised and there's engineers all around the car.

Pierre Gasly sets the fastest time overall in sector one and two.

Lewis Hamilton runs wide into turn five.

George Russell and Nico Hulkeberg get a little too close out on track but there is no contact.

The Ferrari and Mercedes are now back in the pitlane.

Esteban Ocon has been putting in the laps in his Haas and goes up to the sixth spot. His lap time is 1:31.199.

Lewis Hamilton has set his personal bests in all three sectors. It's not fast enough to top Pierre Gasly's time. He stays out on the track.

His former teammate George Russell has just done a flying lap in the Mercedes and goes third fastest, three tenths behind Gasly.

Andrew Benson
BBC F1 correspondent

Image source, Getty Images

Lewis Hamilton said he was "really enjoying" his new Ferrari as he set the second-fastest time on day two of pre-season testing in Bahrain.

The seven-time champion, who has moved to the Italian team this year after 12 seasons with Mercedes, was pipped to fastest lap by 0.031 seconds by Williams' Carlos Sainz.

Hamilton said: "I am really enjoying the car. We're slowly bonding. Yesterday was a so-so day, just OK. But we got through all our run-plan. I was not doing set-up changes or directing where I want the car to go.

"Today was a bit more getting to explore a bit my interaction with my engineer."