Postpublished at Lap 36/56
Sebastian Vettel pits for a fresh set of softs and is back out in third.
Lewis Hamilton is also coming in now...
Hamilton wins Vettel 2nd - both tied on 43 points in title race
Verstappen up to 3rd from back, Ricciardo 4th
Bottas spins behind safety car
Alonso, Kvyat, Vandoorne, Giovinazzi, Stroll out
Gary Rose
Sebastian Vettel pits for a fresh set of softs and is back out in third.
Lewis Hamilton is also coming in now...
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Daniel Ricciardo pits for a fresh set of super-softs and he is back out in fifth.
Lewis Hamilton wants to do likewise: "I think we should probably pit."
Carlos Sainz dives inside Fernando Alonso to move into seventh. Great move but there's problems for Alonso. He's slowing and eventually stops.
"Driveshaft, driveshaft problem," he says and the Spaniard is out of the race. He drove that McLaren to the limit.
Mark Gallagher
BBC Radio 5 live Formula 1 analyst
It's as if Hamilton has gotten wind of Sebastian's progress behind him and has reacted with two incredibly fast laps. It's unlikely Vettel will catch Hamilton.
Tom Clarkson
BBC Radio 5 live commentator
It's an interesting dilemma for Hamilton.
He has been holding back and looking after his tyres to try to get to the end of the race but if he can't do that, then he needs to get the hammer down and find enough space behind him that he can afford another pit stop.
Max Verstappen came back out in sixth after his stop for fresh rubber, so his new target is Valtteri Bottas. Verstappen, on the fresher tyres, eases past Bottas into Turn 6.
After saying that, Lewis Hamilton sticks on the afterburners and goes and does the fastest lap of the race with a 1:36.711.
"Tyres don't feel great," says Lewis Hamilton. He is on softs that are 27 laps old.
Not going to make it to end of the race on those tyres? He's got 24 laps to go.
So just to catch up with where we are. Lewis Hamilton continues to lead the race but is 11 seconds ahead of Sebastian Vettel. Daniel Ricciardo is third ahead of Kimi Raikkonen.
"If Max has problem with his tyres, don't let me fall into Kimi," says Daniel Ricciardo.
Max Verstappen has since pitted for a fresh set of super-softs.
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I'd got so excited by Max's charge up the field and Lewis holding his lead, I hadn't noticed Alonso is all the way up in 7th...great job so far.
Jason Knight
Argh. We're denied some wheel-to-wheel racing between Sebastian Vettel and Max Verstappen as the latter locks up, allowing Vettel to swoop by with minimum fuss.
"Max, need to box," asks Verstappen's race engineer.
"I can continue but the left front is not good," he replies. Verstappen is 25 laps deep on those super-softs.
Romain Grosjean dives down the inside of Jolyon Palmer, locks up as he takes the corner but keeps it together to pinch 13th. Great move.
"I'm surprised we are not boxing," reports Palmer, who is struggling for grip.
Sebastian Vettel is gobbling up Max Verstappen's advantage. The gap has dropped from 3.5 seconds to 1.5 in just a couple of laps.
Fernando Alonso, as ever, is driving the life out of that McLaren.
He's gained five places and is up to seventh, but even his excellent racecraft can't do anything about Valtteri Bottas getting past him.
"Bottas has some damage," he reports as he inspects the passing Mercedes. Multitasking.
Great racing throughout the field as Sergio Perez makes it look easy with a move on Force India team-mate Esteban Ocon at the hairpin. Perez is into 10th.
Tom Clarkson
BBC Radio 5 live commentator
Vettel is going to have his work cut out to beat Hamilton but I think second place is in his mind right now.
Now this could get very interesting. Sebastian Vettel is closing in on Max Verstappen. Three seconds between them but Vettel should catch the Red Bull in the next couple of laps. Play nice boys.
Mark Gallagher
BBC Radio 5 live Formula 1 analyst
Brave stuff from four time World Champion Sebastian Vettel. What can he do now? Can he close up on Max Verstappen?
He is two tenths of a second quicker than the young Red Bull driver.
Great racing today!