Four minutes left and the current drop zone is Stroll, Magnussen, Ericsson, Ocon and Grosjean.

Grosjean leaps clear on a 1:31.691.

Weirdly, Raikkonen has been sent back out on the super-soft tyres despite looking very safe on his soft tyre run.

Into the final minute. Palmer, Stroll, Magnussen, Ericsson and Ocon the men in trouble.

Looks like something just fell off the back of Raikkonen's car.

Great job from Palmer, who leaps clear of the drop zone into seventh. Great job from the Brit.

Alonso climbs to 12th, which should be enough to be safe. Vandoorne can't escape the drop zone. Ericsson moves up to 17th but not enough to escape the drop zone.

Stroll climbs out of the drop zone... so does Wehrlein!

Sainz has stopped at the final corner, he's complaining about having no power.

Perez a big, big scalp in that session. He drops out of that session. Alonso just scrapes through in 15th - he qualified three tenths up on Vandoorne.

Props to Wehrlein for escaping Q1 on his first qualifying session back in the car.

So,, dropping out, in order - Sainz, Vandoorne, Perez, Ericsson, Magnussen. Haas will be disappointed to have finished slowest i that session - Grosjean was 1.2s quicker in 11th.

Sainz had gone purple in his first sector and then green in the middle sector before that engine shutdown. Big blow for him - teammate Kvyat qualified through in ninth.

Toro Rosso apologising to Sainz, saying "it was a really good lap."

The rather frustrated Spaniard replies: "Yeah, I don't care."

A frustrated Sainz walks back to the garage. Someone HAS to pick that guy up for 2018, he deserves a much better car next season.

Q2 is underway.

Mercedes sends both drivers out on super-soft tyres, which will be the norm across the field now. Only ten men make it through to the top-ten shootout, remember.

All those who progress to Q3 will start the race on the tyres used to set their fastest lap in this session, so looking after them is still hugely important if you expect to progress.

Raikkonen complaining his rear tyres haven't warmed up properly.

Hamilton, on the super-soft tyre, sets a massively quick 1:29.535. That's exactly the same as Bottas' benchmark, but Hamilton's time was set first so he stays P1.

This is more what we expected - Ricciardo crosses in third but he's 0.9s down. Verstappen slots in one tenth ahead of his teammate.

Vettel slots into third, 0.061s behind the Mercedes pair. It's SO close at the front.

Raikkonen is 0.3s down on the front three, he's just not able to deliver when it counts it seems.

Both the Renault's have just made it into the top ten as we stand.

Wehrlein crosses a massive nine seconds down so he's had an off somewhere. Looks like he goes again for another lap as he attacks the Turn 1 apex.

Alonso the only man not to have set a lap time so far and his car is currently sat in the McLaren garage without tyres on it. Might not see the Spaniard in this session as there's only five minutes left.

Current drop zone is Grosjean, Ocon, Wehrlein, Alonso and Stroll, who is also yet to set a time.

Alonso's race suit is wrapped around his waist so we won't be seeing the Spaniard on the circuit again in this session. He's 3-0 in qualifying against Vandoorne so far this season.

Stroll finally on the circuit. Wehrlein gets new super-softs and heads back out.

Palmer in tenth on a 1:31.186, so that's the time the guys in the drop zone need to beat. Everyone from Kvyat (in eighth) down are out on the circuit, bar Alonso.

Stroll wobbles a bit through the final corner and crosses in 10th...

But Grosjean climbs to eighth to immediately drop Stroll into the drop zone.

So that's Stroll out. He's 0.4s off Massa - currently that's the gap he needs to overturn in these sessions if he wants to match the Brazilian.

Palmer knocks up to ninth, briefly pushing teammate Hulkenberg down to 11th!

But Hulkenberg shows great pace to go fifth, just 0.6s tenths of Hamilton's lead time! Mega job to escape the session. Palmer survives in tenth.

Great job from Renault to get both cars through to Q3.

Dropping out in that session: Kvyat,Stroll, Wehrlein, Ocon, Alonso.

Grosjean singing happy birthday (to himself, for Monday) after qualifying in ninth. "Yeah...signing is bad," he says.

Alonso confirms to TV Honda's power unit broke in that session, explaining why he didn't run in Q2. Says he expected better.

Perez tells TV he had to abort his lap,which he felt was good enough for Q2, due to the double-waved yellows for Sainz's stopped car. Looking like a grim day for Force India tomorrow.

Hamilton's lead time in that session was a 1:29.536. His pole time last year was 1:29.493, so we're on the cusp of beating last year's time.

Q3 should be one hell of a show - Vettel was well inside 0.1s of the Mercedes drivers, who finished on identical times in Q2.

There's the sound of engine grumbles once again and here we go - Q3 is underway.

Mercedes and Red Bull go straight out for early banker laps on super-softs.

Vettel has just emerged from the garage, followed by Raikkonen.

Hulkenberg, Grosjean and Palmer look set to stay in the garage. They'll all attempt one lap at the end of this session. The other seven drivers are on the circuit.

Ricciardo will be the first man to cross the line in this session.

Bottas 0.1s up on Hamilton through sector one....

Ricciardo crosses in a 1:30.007.

Bottas does a 1:28.844...

Verstappen crosses 0.8s down.

Oh it's so close at the front! Hamilton crosses 0.052s quicker than Bottas.

Both Ferraris already a few tenths down on that mega benchmark from the Mercedes drivers.

Vettel crosses in P3, 0.4s off P1. Raikkonen crosses 0.003s quicker than Verstappen to go P3.

It's Mercedes-Ferrari-Red Bull on the grid rows currently.

Ferrari are going to have to find something pretty special in the final runs. I thought Bottas had got pole with that lap time - great job from both of them.

Grosjean has gone out, and has the track to himself briefly before we get the late flurry of activity for late laps.

There's a real battle for pole here because Bottas has been quicker than Hamilton in the first sector this weekend.

Hulkenberg and Palmer both on out-laps.

All 10 drivers out on the circuit.

Grosjean's first lap time a 1:30.763- that's what the Renault's have to beat...

Hamilton appears to have got himself stuck in a bit of traffic, he's stuck between the Red Bull drivers.

Bottas starts what he hopes is the lap to give him his first career pole.

Bottas slides through Turn 1 with a bit of understeer...

Barely anything between the Mercedes drivers through S1...

Hulkenberg jumps to p6!

Bottas takes provisional pole....

Hamilton has a messy middle sector... He can't beat his teammate! Bottas takes pole by 0.023s!

Raikkonen can't improve, he's slipped down to fifth. Vettel shaves a tiny margin off his benchmark but he'll line up third alongside Ricciardo.