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Summary

  1. Second practice ends after Grosjean crashes hitting drain cover
  2. Both Mercedes off pace as Ferraris fastest
  3. Final practice on Saturday at 07:00 BST, qualifying at 10:00
  4. Verstappen fastest in rain-hit first practice, Ricciardo 2nd, Hamilton 6th

Live Reporting

By Gary Rose

All times stated are UK

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Right that's it from us. We'll be back bright and early on Saturday morning for final practice and then qualifying.

Join us from 06:30 BST tomorrow. See you then.

Missed second practice? Catch up by reading Andrew Benson's report here.

Predict who will top qualifying in Sepang

Fancy being brave and making an early prediction for qualifying? Head here to predict the top three.

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Stewart: If Hamilton finishes ahead of Vettel on Sunday, the Championship is over. Ferrari need a 1-2 this weekend.

Ben Berwick: Pretty terrifying incident. Tracks need to make sure these covers are secure.

Lewis Hamilton
AFP/Getty Images

A delayed start to first practice and a abrupt finish to second practice.

A disrupted day in which Ferrari showed promising pace but Mercedes appear to have lots of work to do.

FP2 - the rest

11) Palmer

12) Massa

13) Vandoorne

14) Stroll

15) Gasly

16) Sainz

17) Grosjean

18) Magnussen

19) Wehrlein

20) Ericsson

FP2 top 10

1) Vettel 1:31.261

2) Raikkonen +0.604

3) Ricciardo +0.838

4) Verstappen +0.848

5) Alonso +1.303

6) Hamilton +1.416

7) Bottas +1.459

8) Perez +1.601

9) Hulkenberg +1.799

10 Ocon +1.835

'The next thing I knew there was no tyre'

Romain Grosjean has just been speaking to Sky Sports. He's actually got a big smile on his face as he says: "I am good. I am fine, that is the most important thing.

"I have just seen the footage. I was on the racing line and had a big hit on my rear right. The next thing I knew there was no tyre there anymore and I was spinning."

SESSION WILL NOT BE RESTARTED

There's clearly too much work to be done to sort that exposed drain and race control have confirmed the session will not be restarted.

There's 11 minutes left but I can't see us getting any more running done in this session. Race director Charlie Whiting has just emerged from a safety car to inspect the hole. It's a big hole as well.

Mark Gallagher

BBC Radio 5 live Formula 1 analyst

Exceptionally dangerous. You can see that cover sticking up in the air and we are seeing the wheel of the Haas, absolutely shredded.

Looking at replays, it seems a drain cover came loose on the inside of the kerbing after Valtteri Bottas and Kimi Raikkonen ran over it. Then the unfortunate Romain Grosjean came round, hit the drain cover and it obliterated his right rear.

Red flag

Romain Grosjean is into the barrier!

He lost control of his Haas, there's debris on the track which appears to have come from his right rear.

Fortunately the Frenchman appears OK as he climbs out of the car.

Carlos Sainz has been having all sorts of problems today. He had earlier called his Toro Rosso "undriveable" and now says he has no power on the main straight.

"Box, box," he is told.

We're at the end of the qualifying sims. Here's the top 10:

1) Vettel 1:31.261

2) Raikkonen +0.604

3) Ricciardo +0.838

4) Verstappen +0.848

5) Alonso +1.303

6) Hamilton +1.416

7) Bottas +1.459

8) Perez +1.601

9) Hulkenberg +1.799

10 Ocon +1.835

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Chris Marsh: Did Mercedes bring the 2016 car this weekend? Good of them to give Ferrari a fighting chance.

Lewis Hamilton heads back into the pits, gets out of his Mercedes and leaves his crew to work on his car.

Early doors, but things looking good for Ferrari.

Thinking caps on

Mark Gallagher

BBC Radio 5 live Formula 1 analyst

This is a turn up for the books. The Honda manager will be pretty happy to see what!

And how about this!? Fernando Alonso has just gone quicker than both Mercedes, the McLaren completing a lap of the circuit in 1:32.564.

Fernando Alonso
EPA

Lewis Hamilton improves to go fifth quickest but still Mercedes are nowhere near. He's 1.416s slower than Sebastian Vettel.

Mark Gallagher

BBC Radio 5 live Formula 1 analyst

He will be pretty anxious to get back out on the track with 43 minutes remaining.

Lewis Hamilton is finally heading back out onto the track for the first time since his little trip into the gravel some 20 minutes or so ago.

Let's see what he's got on the super-softs.

Lewis Hamilton
Getty Images

Pierre Gasly continues to do well. He's currently P15 having done a 1:34.043, which is almost a tenth of a second quicker than his Toro Rosso team-mate Carlos Sainz.

Sebastian Vettel
Reuters

It's only a 1:32.720 for Valtteri Bottas, putting him fifth and way off the pace of the Ferraris. He's 1.459 seconds slower than Sebastian Vettel.

Valtteri Bottas heads on out but Lewis Hamilton stays in the Mercedes garage for now.

Valtteri Bottas
EPA

Few drivers struggling to keep their cars on the circuit at the moment. Lance Stroll takes out a bollard when he runs wide before Marcus Ericsson takes a trundle through the grass after locking up.

And Sebastian Vettel goes quickest. He does a 1:31.261 on the super-softs, six tenths of a second quicker than fellow Ferrari driver Kimi Raikkonen, who had briefly held top spot.

Max Verstappen
Getty Images

Third quickest for Max Verstappen on the super-softs. He's almost half a second slower than Red Bull team-mate Daniel Ricciardo.

Meanwhile, here come the Ferraris on their qualifying simulation runs...

Both Ferraris are back out on the circuit but Lewis Hamilton and Valtteri Bottas are still in the Mercedes garage.

Daniel Ricciardo is fastest of all through the first sectors. It's going to put him P1 but how much quicker than Sebastian Vettel? Three tenths quicker is the answer. The Australian does a 1:32.099 on the super-softs although lost some time in a scrappy final sector.

And it's a 1:33.069 for Nico Hulkenberg, putting him P5.

Here come the super-softs.

Nico Hulkenberg is the first to head on the red-walled tyre but is quickly followed by the Red Bulls.

Lewis Hamilton
Getty Images

Lewis Hamilton is currently fifth quickest, seven tenths of a second down on Sebastian Vettel, with Valtteri Bottas sixth quickest.

Everyone is back in the pits now apart from Sergio Perez and Carlos Sainz.

One hour of second practice remaining.

Mark Gallagher

BBC Radio 5 live Formula 1 analyst

Both Mercedes off in this session, that is a little bit of drama when they need to get some running in.