Some bad news for Leon Britton on his 500th Swansea outing - he's making way for Angel Rangel.

Tactical of course after Kyle Naughton's red card.

Oh controversy. Kyle Naughton contests a bouncing ball with Yann M'Vila and while his foot is high, he clearly gets the ball.

To paint you a picture, M'Vila controls the ball and then as it bounces up, Naughton stamps down on it. It may appear a stamp but it does seem harsh.

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Modou Barrow (wearing number 58 which is just too high in my book) cuts in from the right and fires left-footed. Good hit from 25 yards, well held.

Now Ki tries to burst through the defence to reach a long ball, he gets a toe to it but Vito Mannone collects.

In comes another Swansea corner, just an inch to high for Andre Ayew - who has been very lively. The home side are pressing more and it's counter-attack, perhaps as you'd expect for the away side.

Fabio Borini races away with the ball and gets tracked by Leon Britton before a well-timed tackle.

"Leon, Leon, Leon", chant the home fans.

Graeme Hunt:  Swansea penalty? Premiership supposedly best league in the world but obviously the refs aren't part of that criteria.

Replays do show Jordan Ayew seemed to stub his own toe and trip.

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It's hard to say Swansea didn't deserve their slice of luck.

Dominant in possession and territory, it was going to take some Sunderland defensive display to ride the storm for 90 minutes.

Game on again. Sunderland cannot just sit in. At the moment, any threat for the away side is born of Swansea's own making. They are giving the ball away in their own half too much and with Jermain Defoe sniffing around, that can end in tears.

Dafydd Pritchard
BBC Sport Wales at the Liberty Stadium

It's 1-1 on the scoreboard and 1-1 in terms of dubious goals.

If Jermain Defoe looked offside for his opener, it seems Andre Ayew might have tripped over his own feet to win the penalty for Gylfi Sigurdsson's equaliser.

Sam Allardyce certainly thinks so. The Sunderland manager is furious, gesticulating wildly at the match officials from the touchline.

Image source, Reuters

Image source, Getty Images

That's four league goals this season for Gylfi Sigurdsson by the way. Too bad I took him out of the fantasy team a few weeks back. 

The game has been so good that referee Graham Scott has just had to change the ball. The players have run this one ragged.

Andre Ayew beats Wes Brown and gets into the area, can he fashions space... no, he goes down. Brown bundled into the back of him and seemed to make contact as the forward was about to shoot.

Sam Allardyce is disgusted. Penalty.

Swansea corner. Bodies lurk in the middle... one of them is Andre Ayew and he heads over. "Oooohhh" cry the home fans. Only about a foot clear of the bar. He found space well but the finish couldn't match the footwork.

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Sunderland have not won at Swansea since a Division Two meeting in November 1963. Their win arrived 24 hours after US President John F. Kennedy was assassinated.

A MAJOR LET OFF for Swansea City.

Suddenly, Patrick van Aanholt races down the left and finds himself in a two-against-one situation with Fabio Borini for support. All it needs is a final ball and Borini has the whole of South Wales to himself to score. The pass is poor and gets cleared by a panicking defender.

Dafydd Pritchard
BBC Sport Wales at the Liberty Stadium

The atmosphere at the Liberty Stadium has generally been one of unease and edginess in recent months but, despite watching Swansea fall behind to Sunderland after just three minutes, the home fans are in good voice.

They are not as vocal as the delirious visiting supporters, mind you. The cries of "Sunderland" have been ringing out behind Vito Mannone's goal almost non-stop since Jermain Defoe's crucial opening goal.

Patrick van Aanholt deflects the ball behind for a corner and Swansea are responding admirably to that early setback. Wayne Routledge with a lovely long ball out wide to Gylfi Sigurdsson, a low delivery... hacked away.

When your goalkeeper takes the worst goal kick of the season and then spills a shot...

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It's a good idea to look away...

Image source, Reuters

There are goals in this. John O'Shea uses his 1,000 years of experience to be in the right place and turn a cut-back for the corner.

There is space in midfield for Swansea to play and you have to think that will count at some stage. Big Sam is off the bench and screaming at some poor soul.

Andrew Priestley: Jermain Defoe deserves a lot more credit than he currently gets. He's a great goalscorer. Meanwhile Swansea are sinking, fast.