Strong reaction from the Swans as Gylfi Sigurdsson has a shot blocked before Kyle Bartley curls over. They aren't giving up yet...

A succession of corners now forced by Swansea.... a fourth in a row.

Swansea force their first corner of the game as the impressive Carl Jenkinson is replaced by Joey O'Brien for West Ham at right back. The Arsenal loanee looks to have a hamstring knock.

The visitors' corner comes to nothing but they remain on the attack...

Jon: Waiting for Garry Monk to go on about how "decisions always go against his team" after that red (see 68 mins). Good decision in my opinion.

Ponder: Definite red card. Diafra Sakho hit the post BECAUSE Lukasz Fabianski clattered him and sent him wide. He denied an easier chance.

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It should be game over. West Ham's Diafra Sakho easily dispossesses Ashley Wiliams but, clean through on goal, he drags his shot against the post. Should score.

Image source, Getty Images

It's half time in the afternoon's eight FA Cup second round ties.

There's been a number of goals so far and some potential upsets are still on the cards.

See all the scores and read more about the scorers so far in our live text here.

What a couple of minutes it has been for West Ham striker Andy Carroll. He celebrated his second with a dash towards the medical staff on the substitutes bench to thank them for their patience. Maybe it is paying off.

Striker Bafetimbi Gomis on for winger Jefferson Montero for Swansea.

Tom Chance: How can Lukasz Fabianski have denied a goal-scoring opportunity (see 68 mins), when Enner Valencia clearly still had a goal-scoring opportunity?

Sean: How is that a red? He allowed the advantage, therefore I thought the worst it could be was a yellow?

Grant McGregor: Swansea keeper shouldn't have been sent off. The player still got his shot off and it hit the post. Clear advantage.

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Looking at the replays Diafra Sakho could even have handled the ball before rounding goalkeeper Lukasz Fabianski on the left. I get the feeling we will hear more about this post match.

Former QPR striker Bradley Allen
BBC Radio London at the Boleyn Ground

"After scoring the goal to put his side ahead (see 66 mins), Andy Carroll sprinted across to the bench to celebrate, probably with the medical team because of the journey he has been on, the injuries he has had. There are not many English centre-forwards like him that are big strong and can head the ball. He deserves that goal. West Ham should go on and win this game now.

"For the red card incident, Diafra Sakho did so well to stay on his feet. The referee played the advantage, he allowed the striker the chance to score but I am not convinced that is right myself. It's a tricky one."

Disaster for Swansea as they are reduced to 10 men.

Just minutes after going 2-1 down, goalkeeper Lukasz Fabianski is sent off for stopping striker Diafra Sakho. Sakho is through when Fabianski collides with him but the substitute continues before rolling the ball against the post, Referee Chris Foy pulls the play back and sends Fabianski off. Seems harsh to me.

Gerhard Tremmel replaces Fabianski between the posts, with Leon Britton making way.

Image source, Getty Images

He can't stop scoring. A Stewart Downing corner from the left finds an unmarked Andy Carroll and the answer is almost inevitable. The striker heads home for his second goal, giving the Hammers the lead.

Image source, Getty Images

Image source, Getty Images

Former QPR striker Bradley Allen
BBC Radio London at the Boleyn Ground

"What a let off that was (see 60 mins). That is the worry - if West Ham are overcommitted, Swansea are so quick on the counter attack. The home side got cruelly exposed in the first half with Swansea's only really excellent move for the goal. They need to keep their concentration levels high."

No one has had more touches of the ball than Alex Song in this match. The West Ham midfielder is always wanting the ball and, more often than not, gets it when he demands it.

Image source, Getty Images

Swansea can't keep hold of the ball as West Ham continue to pile forwards.

The visitors can still break though and, with a lightening quick break, Wilfried Bony flashes a shot cross the bar from the edge of the penalty area. So close.

Image source, PA

Former QPR striker Bradley Allen
BBC Radio London at the Boleyn Ground

"West Ham are looking very purposeful in this second half. Diafra Sakho has given them a lift and at times it has looked like becoming attack versus defence. Can the home side get that breakthrough? The way Swansea have set up it looks like they've come here just to do a defensive job and see it through to get a point."

Aaron Cresswell makes inroads down the left but his low cross is just too heavy for Andy Carroll to get on the end of at the far post. Hammers having all the play.

Wilfried Bony penalised for downing West Ham's Winston Reid at the half-way line to give the Hammers another chance of loading the ball into the area. Aaron Cresswell does just that but Bony climbs above Andy Carroll to head clear. Good defending.

West Ham are having all the early second-half pressure. Remember though, the first half started like that as well before Swansea took the lead...

Image source, Getty Images

Kyle Bartley is down holding his head after a clash of heads with Diafra Sakho. The Swansea defender looks a little groggy but he is back on and OK.