Chris Medland
F1 journalist in Bahrain

Image source, Getty Images

Just before lunchtime, there were some interesting signs of relative performance at the tricky Turn 11. There was a fluctuating tail wind into that relatively high-speed, uphill left-hand corner at the end of the back straight, and the level of confidence of the drivers was clear from how early they picked up the throttle.

The rear end of Lewis Hamilton's Ferrari appeared not to want to grip on a few occasions, as he was sliding through the second half of the corner, whereas Oscar Piastri looked like he could be aggressive on turn-in and the McLaren stayed compliant throughout.

The same could be said for Andrea Kimi Antonelli, who was able to carry plenty of speed on entry and ended the morning on top of the time sheets, while Alex Albon asked a little bit too much of his WIlliams on one lap and ran too wide on to the exit kerb.

George Russell is not in his car, he's waving at the camera, wearing a very shiny silver jacket.

Lando Norris - McLaren

Charles Leclerc - Ferrari

George Russell - Mercedes

Max Verstappen - Red Bull

Isack Hadjar - Racing Bulls

Pierre Gasly - Alpine

Carlos Sainz - Williams

Lance Stroll - Aston Martin

Esteban Ocon - Haas

Gabriel Bortoleto - Sauber

The clock has began to tick down, but no one's in a rush to leave the garages.

Here's who will be driving in the afternoon session.

Hello again.

It's time for the afternoon session on day one of testing.

Image source, Getty Images

Right, time to grab a break.

We will be back for the afternoon session from 12:00 GMT.

See you then!

1. Andrea Kimi Antonelli (Mercedes) - 1:31.428

2. Liam Lawson (Red Bull) +0.132

3. Alex Albon (Williams) +0.145

4. Yuki Tsunoda (Racing Bulls) +0.182

5. Lewis Hamilton (Ferrari) +0.406

6. Jack Doohan (Alpine) +0.413

7. Fernando Alonso (Aston Martin) +0.446

8. Oscar Piastri (McLaren) +0.656

9. Nico Hulkenberg (Sauber) +0.741

10. Oliver Bearman (Haas) +4.094

Chris Medland
F1 journalist in Bahrain

Image source, Getty Images

At Haas, one of the big points of focus for these three days in Bahrain will be bedding in not only an entirely new driver line-up in Esteban Ocon and rookie Oliver Bearman, but a new race operations team as well.

That includes a new chief race engineer in the form of Francesco Neri, and a new race engineer for each driver - Laura Mueller for Esteban Ocon and Ronan O'Hare for Bearman - while the new sporting director is a familiar name, with Mark Lowe having worked for the team in the past. Haas also have a new head of strategy joining, with Carine Cridelich set to join from Racing Bulls next month.

There's some flying laps happening on the track, can drivers clock in faster lap times?

Antonelli and Tsunoda are on the most laps, 74 for the pair.

Just 10 minutes to go of the morning session.

What else can the drivers do before they pass on testing duties to their teammates.

68 laps now completed for Yuki Tsunoda, Oliver Bearman and Andrea Kimi Antonelli.

At the other end, Fernando Alonso has clocked 40 laps.

Image source, Getty Images

Max Verstappen has been watching on from the Red Bull garage. We will see him in the car for the afternoon session.

McLaren's Oscar Piastri has joined the pack. He's on an out lap, but we will see what time he clocks in soon.

Alex Albon, Lewis Hamilton, Jack Doohan and Yuki Tsunoda are on their out laps.

Andrea Kimi Antonelli has completed the most laps so far, 66 for the Mercedes rookie.

There is just 30 minutes to go of the morning session on day one of testing.

Oliver Bearman is back out on track and has also done a race distance, clocking in 57 laps.

Alex Albon and Liam Lawson are on their out lap, Lewis Hamilton has also joined them.

Tsunoda and Antonelli are joined by Aston Martin's Fernando Alonso on the track.

Everyone else is back in their team garages.

Racing Bull's Yuki Tsunoda has clocked in the most laps so far, he's on 57 and completed a race distance in Bahrain.

Andrea Kimi Antonelli has also clocked 57 laps so far.