And that after the Swans had been given the lead from the spot. Two minutes have been added on to the first half...

Have a look at this Swansea second goal. One Pep would have been proud of...

Sergio Aguero, on the Manchester City bench, leans back and chews his gum with the resignation of a man who knows that his night off has just gone up in smoke.

Image source, PA

Bonmahon Beach: Super Neil Harris.

Image source, Getty Images

Eerily quiet in Swansea, as if the home fans can't believe what they are seeing, or dare not celebrate for fear of it being taken away.

By the way, have you seen Bersant Celina's penalty from midweek? A Beckham-style slip, one foot kicking the other, the ball trickling towards the corner flag. Not a bad way to bounce back.

Viv: Well deserved lead for Swansea. City has looked disjointed upfront and more so after the 1st goal. Jesus, Mahrez and co have been poor upfront + full backs going awol! Need change

Stick Gangsta: Can we just fast forward to the end right now? The next 60 minutes promise to be agonising

Tunde Paul: Wow, that is absolutely brilliant from Swansea. It is like dreaming, That second goal made Pep's Man City team looked ordinary. Fantastic and well worked goal!

Image source, Getty Images

Yep, it really does have all the ingredients of cupset. Somehow, Connor Roberts has cleared the ball off the line, denying David Silva from six yards when the keeper was beaten. Even after, the ball creeps along the goal line, before turning the corner at the post. Roberts punches the air like he's just popped one in from 35 yards.

Alan Ferguson: For the sake of mankind and all humanity, please let Swansea hold onto this. I’m so bored with the quadruple talk

Daniel Woodley: That goal has Manchester City written all over it! Absolutely sensational from Swansea! The Quadruple is in danger.

Khan Karn: Congratulations Solskjaer. Manchester United just won the FA Cup

Remember FA Cup Shock Bingo? Add 'keeper having a blinder' to that. Kristoffer Nordfelt again, once more denying Bernado Silva. It looks like the shot takes a deflection, with Nordfelt changing direction to save with his legs.

Cool McCool: That was a very, very good goal from Swansea City

Tom Swain: Goodness me that is a great goal from Celina.

Ross Christie: Fabian Delph to cost City the FA cup two years in a row? Makes for an interesting game anyway...

Image source, Reuters

What were we saying about the odds of a Welsh double? Did you back it?

There's an odd aura of disbelief in Swansea at the moment.

Danny Gabbidon
Former Wales defender on BBC Radio 5 Live Sports Extra

This was a finish right out of the top drawer. They cut Man City open far too easily, the first time ball is back to Celina, perfectly weighted and he hits it first time to Ederson's left, and he has absolutely no chance.

Image source, Reuters

Paul Harris: At least some hope that City will finally get challenged in cup competition this season. Apart from Chelsea in the League Cup final (which they should’ve lost) they haven’t had to play anyone - easy draws in all three competition!

Danny Gabbidon
Former Wales defender on BBC Radio 5 Live Sports Extra

They just look a little bit rattled, Manchester City. Pep Guardiola is not happy in that technical area and simple passes from four or five yards are going astray

Who is football's best-dressed manager? And if you were a manager, would you be tracksuit or suit?

We're answering the big questions.

Naturally, the home fans are going absolutely bonkers. If you're playing FA Cup Shock Bingo, you can tick off a fan holding up a cardboard trophy covered in silver foil.

Danny Gabbidon
Former Wales defender on BBC Radio 5 Live Sports Extra

It's brilliant from Swansea City. They have been under the cosh for most of the first half but this is a brilliantly worked move, Connor Roberts touch is absolutely exquisite, it sucks the defender in and Delph makes a bad decision to bring him down.