Postpublished at Lap 52/57
It's all about the battle at the front. The only other tussle of interest is between Fernando Alonso and Daniil Kvyat. The McLaren, currently 12th, is half a second ahead of the Toro Rosso.
Image source, Getty ImagesSummary
Vettel wins, Hamilton 2nd, Bottas 3rd
Hamilton given time penalty for obstructing Ricciardo
Verstappen suffers brake failure
Vandoorne, Magnussen, Verstappen, Sainz, Stroll, Ericsson out
Get involved #bbcf1
Postpublished at Lap 52/57
Image source, Getty Images
Yellow flagpublished at Lap 51/57
Marcus Ericsson, running last, pulls over to the side.
"My gearbox is broken," he says.
"Oh! What's going on," is the somewhat surprised reply.
The Sauber is done.
Listen to more Alonso rantingpublished at 17:28 British Summer Time 16 April 2017
Media caption, Fernando Alonso continues to rant at his team about a lack of power
Postpublished at 17:28 British Summer Time 16 April 2017
Mark Gallagher
BBC Radio 5 live Formula 1 analystThe reality is Hamilton is not giving up but one suspects that five second time penalty will decide this race - to be honest, it may have ruined the race...
Postpublished at Lap 49/57
"It is all going to happen at the end, keep it up mate," Lewis Hamilton is told over team radio.
The gap is down to 9.3 seconds as Sebastian Vettel picks his way past the backmarkers.
Ferrari team principal Maurizio Arrivabene can't take the tension. He's gone out of the garage for a bit of fresh air.
What a race.
Image source, Getty ImagesPostpublished at Lap 48/57
The gap between Sebastian Vettel and Lewis Hamilton is down to 11.3 seconds but Hamilton was just a second quicker than Vettel on that last lap.
Vettel is approaching backmarkers Jolyon Palmer and Marcus Ericsson.
Image source, Rex FeaturesPostpublished at 17:25 British Summer Time 16 April 2017
Andrew Benson
Chief F1 writer in BahrainMercedes confirm Bottas backed off to let Hamilton through as Hamilton is racing for the win.
Get involved #bbcf1published at 17:23 British Summer Time 16 April 2017
Reece Young: If @LewisHamilton, external wins this it will be one of his greatest wins ever
Lupor Daniel Suror: This driving is simply Ridicolous! Wow
Postpublished at Lap 47/57
Lewis Hamilton breezes past Valtteri Bottas at the penultimate corner.
"Vettel is coming up to backmarker traffic, Lewis. Come on!" Hamilton is told.
Here. We. Go.
Postpublished at Lap 46/57
Mercedes team radio to Lewis Hamilton: "You have the pace to win this, Lewis. Come on mate!"
Now less than a second between Hamilton and Valtteri Bottas...
Image source, Rex FeaturesPostpublished at 17:21 British Summer Time 16 April 2017
Mark Gallagher
BBC Radio 5 live Formula 1 analystBased on their current pace, I don't think Bottas will be getting any team orders to let Hamilton through any time soon - I think Hamilton will just breeze straight past him in a few laps time.
Bottas' performance has been nowhere near good enough to challenge for the race despite his pole position this weekend.
Postpublished at Lap 45/57
Lewis Hamilton is closing in on Valtteri Bottas with 2.7 seconds between them now. Get past his team-mate and he should be right on Sebastian Vettel's tail going into the final few laps.
Hold on tight, this could be a tense finish!
Postpublished at Lap 45/57
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End of twitter postPostpublished at Lap 44/57
Lewis Hamilton is 6.6 seconds behind Valtteri Bottas and 16.4 seconds behind race leader Sebastian Vettel after serving his five-second penalty during that last stop.
Hamilton does a 1:32.887, 1.5 seconds quicker than Vettel.
Is the race win on for the Briton?
Image source, Getty ImagesPostpublished at Lap 43/57
"Why are we going for this tyre?" asks Lewis Hamilton, as he questions why softs were put on rather than super-softs. "It is based on data," Mercedes assure him.
Image source, Getty ImagesPostpublished at Lap 42/57
The Mercedes pit crew gets ready. Lewis Hamilton is indeed coming in... he takes on a fresh set of softs and comes out ahead of Kimi Raikkonen in third.
Postpublished at 17:12 British Summer Time 16 April 2017
Andrew Benson
Chief F1 writer in BahrainYes, Hamilton is coming in again - for softs. He's told he'll need to overtake Bottas on track
Postpublished at Lap 41/57
Valtteri Bottas is also told that Lewis Hamilton has a five second penalty and is yet to stop.
Looks like Hamilton will be stopping again...
Image source, Getty ImagesPostpublished at Lap 40/57
"It's important to close the gap to Sebastian Vettel," Valtteri Bottas is told. The Mercedes is 9.5 seconds behind the Ferrari.
Meanwhile, Daniel Ricciardo pits from fourth, takes on super-softs, and is back out in fifth, behind Kimi Raiikkonen.
Image source, Getty ImagesPostpublished at 17:11 British Summer Time 16 April 2017
Mark Gallagher
BBC Radio 5 live Formula 1 analystIt's been pretty cataclysmic weekend for Honda hasn't it. There is plenty of head scratching going on up and down the pit lane as to how they have managed to get it so wrong.
I'm sure Fernando Alonso can't wait to get to Indianapolis.