Drama at the last as Valtteri Bottas spies a chance to pick off Sergio Perez and he takes it. Bottas is into third, with Kimi Raikkonen also getting the better of Perez.

But what is this!? Contact between Bottas and Raikkonen and they are out of the battle for third! Perez back in third!

Alex: Aww shame for Sainz, brake failure and off he goes, and broken rear wing too, not a great weekend sadly for him.

Rob Marshall: Moderately interesting Russian GP but what a dull place Sochi is - looks like an abandoned theme park.

Lewis Hamilton reports a rear wing problem but it isn't going to cause him any trouble with one lap to go. He leads Sebastian Vettel by 7.8s.

However, the battle for third is all to play for, with Valtteri Bottas on the tail of Sergio Perez...

Engineer: "OK Lewis, three laps to go, still seeing some suspect performance from the rear wing. We suggest if you get DRS, not to use it."

A real shame for Carlos Sainz after showing some real determination this weekend. A hair raising crash in practice yesterday resulted in him being airlifted to hospital. It was simply an outstanding achievement for him to be even racing today but even then he got himself up from the back of the grid and into the points. 

Even when there was a problem with his car he would not give up. An absolute battler.

Daniel Ricciardo is also out as he parks his Red Bull. He reports a problem with his suspension.

My word! Replays show a marshal running on to the track to retrieve that bit of debris that came off the Toro Rosso. Just as he sprints back to the barrier Sebastian Vettel comes by. That was uncomfortably close.

"We have a very brave Russian," Vettel says over team radio.

That's Carlos Sainz's race over. He has parked the Toro Rosso. A great effort, though, to have got into the points initially after yesterday.

Yellow flagpublished at 13:30

13:30

James, you spoke too soon.

Carlos Sainz spins once, gets going, and then spins again at Turn 13, planting his rear into the same barrier he crashed into yesterday, he gets himself going again but a piece of debris comes off his rear wing.

James Allen
BBC Radio 5 live F1 commentator

Engineer to Valtteri Bottas (currently fourth): "Ten laps to go, Perez is starting to struggle badly. We can still get this podium."

Never mind attacking for third, Daniel Ricciardo has some defending to do as Valtteri Bottas' Williams looms large. He is getting closer, and closer and passes the Australian at Turn 2 to move into fourth. Next up, a struggling Sergio Perez...

Jennie Gow
BBC Radio 5 live pit-lane reporter

Sebastian Vettel clocks the fastest lap of the race and he is taking a nibble out of Lewis Hamilton's advantage, which currently stands at 11.8s.

Lukas Redl: Force India on a podium today? That would be fantastic.

Gareth: Force India on the podium? Bring it on!

Sean Harrison: Alonso's radio messages are getting as good as Raikkonen's.

Ben Edwards
BBC F1 commentator

"There is a real opportunity for someone different to get on the podium today. The question is 'who is it going to be?'"

Daniel Ricciardo is very much in with a chance to claiming a place on the podium. He is two seconds behind Sergio Perez in third.

"Checo, it's P3 but to make it work, we need maximum management on the front," he is told over team radio. "I can't do any more," is the reply.

Can Perez keep Ricciardo at bay before the flag?

Lewis Hamilton may be storming towards victory out in front - he has a 12 second lead over Sebastian Vettel - but there are some good battles further down the field. Felipe Massa versus Daniil Kvyat is one of them, a lapped Manor wants no part of it as it runs wide to let the two duel. Massa attempts to get past Kvyat, but the Russian holds him off.

Rosberg pulls away ahead of Hamilton before a safety car following Hulkenberg and Ericsson's crash

Rosberg retires, external after a throttle failure, handing Hamilton the lead

Ferrari's Vettel and Raikkonen nearly bang wheels as they fight on track for position

Big crash for Lotus' Grosjean,, external as he slams into the barrier at Turn 3. Is OK

Hamilton dominating out front