Tom Clarkson
BBC Radio 5 live commentator

We've seen some reliability from McLaren. A real step forward for the team this weekend so far.  

McLaren fans, here's something to brighten your morning - Fernando Alonso finished Q1 an impressive 12th! 

Tom Clarkson
BBC Radio 5 live commentator

Antonio Giovinazzi has done one hour practice, come in and gone just two tenths of a second slower than his established team-mate Marcus Ericsson, great job by him.  

What a performance by Antonio Giovinazzi. He only climbed into the Sauber this morning and was not far off sneaking into Q2 there. Great effort.

Image source, Getty Images

16) Antonio Giovinazzi 17) Kevin Magnussen 18) Stoffel Vandoorne 19) Lance Stroll 20) Jolyon Palmer

Image source, AP

Meanwhile, Kimi Raikkonen bangs in a 1:24.464 to go second and split the Mercedes.

He's not massively happy though, saying on the radio soon afterwards: "The rear is still really bad."

Looks like Stoffel Vandoorne will have enough time to sneak a lap in. Can he get himself out of trouble?

Two minutes to go in Q1 and the drivers in danger are:

15) Antonio Giovinazzi 16) Marcus Ericsson 17) Kevin Magnussen 18) Lance Stroll 19) Jolyon Palmer 20) Stoffel Vandoorne

Lance Stroll's first lap is a 1:27.143, which leaves him propping up the timesheet.

On the subject of F1 debutants, Antonio Giovnazzi, who has stepped in for Pascal Wehrlein, is currently 14th following a 1:26.419. He's actually done a better time than his fellow Sauber driver Marcus Ericsson. Impressive!

Image source, Getty Images

Lewis Hamilton moves into P1 with a 1:24.191 and promptly returns to the pits, comfortably through to Q2.

No times yet from Jolyon Palmer and Stoffel Vandoorne.

Image source, AP

Max Verstappen locks up at the right-hander at Turn 6, fluffing his attempt to get a time on the board that will see him through to Q2. Plenty of time for the Red Bull driver to go again with six minutes on the clock.

Image source, AP

Excellent work by the Williams crew as they get Lance Stroll out for qualifying after his crash in final practice. Let's see what he can do.

Oh no. Barely halfway through the first part of qualifying and there's an issue for McLaren. 

Stoffel Vandoorne is told to box because of a fuel flow problem.

It's a Mercedes one-two at the top of the timesheet now as Valtteri Bottas edging his team-mate Lewis Hamilton into P1. Bottas crosses the line in 1:24.514 while Hamilton does a 1:24.535.

Image source, Getty Images

Ten times on the board now with Sebastian Vettel leading the way. He's done a 1:25.733 on supersofts. Everyone else - apart from Vettel's Ferrari team-mate Kimi Raikkonen - have gone out on ultrasofts.

Image source, AP

Kristine Kirby: So excited F1 is back, but REALLY wish we had started on a race w/ a gentler time zone to us in England. I'm both wide awake & sleepy 

Fernando Alonso gets Q1 up and running with a 1:27.745.