Stephen Warnock
Ex-Liverpool defender on Final Score

The interesting thing is before the goal happen Otamendi came off for Aguero and now the game has flipped.

Kyle Walker is having a tough day, blatant penalty. These days happen.

I said at one point Palace were in big trouble, the way Palace have come back is brilliant

Before Palace scored their third, City sent on Sergio Aguero for Nicolas Otamendi.

Crystal Palace's previous four league results at Manchester City:

0-5 LOST

0-5 LOST

0-4 LOST

0-3 LOST

And the drama keeps on coming!

Few complaints from the home side as Kyle Walker brings down Max Meyer and Andre Marriner points to the penalty spot.

Moments earlier, Andros Townsend headed against the woodwork.

Chris Bevan
BBC Sport at Etihad Stadium

Manchester City were 13 points clear on Christmas Day last year and had the title in the bag, or Santa's sack if you prefer. Unless they can turn this one around they will be four points adrift of Liverpool and I can't imagine Pep Guardiola will enjoy opening his presents next week.

I doubt Pep is smiling too much at the moment either to be honest. Palace only managed two shots at goal in that first half - but it was definitely a case of quality, not quantity and boy did they make them both count.

For all City's possession - and they have had 76% of it - they have lacked invention in the final third and are not moving forward with their usual fluency. Fernandinho, for starters, is a big miss at the heart of their midfield.

Any Liverpool fans getting excited?

There's a long way to go in this one but Palace are halfway to sending shockwaves through the Premier League.

We're back under way.

Ryan: So City had 78% possession with an assault on goal, yet only mustered one goal.. Palace scored two in virtually as many minutes. Quality over quantity is vastly underrated!

Nokeeroe: Looks like that wily old campaigner Roy Hodgson is about to pull off the result of the season at the Etihad.

There's a lot of life left in this one yet, Nokeeroe

Forget Christmas drinks and nibbles with the neighbours later. That DVD you bought and intend to watch can wait. Whatever plans you have cancel them now.

Stay in and watch Match of the Day. Trust me. It'll be worth it just to see Andros Townsend's goal.

Moments like that don't happen very often.

Christmas has come early for Crystal Palace fans!

But will it last?

Image source, PA

Cheers as former Manchester United man Wilfried Zaha goes into the book for a foul on Ilkay Gundogan.

Michael Brown
Former Man City midfielder on BBC Radio 5 live

That's what's special about the game, when somebody does something like that.

It'll be remembered by all the Palace supporters, the player himself... Andros Townsend will put his head on the pillow tonight and think 'how have I done that?!' What a feeling for him.

It's chucking it down. Pep Guardiola is glued to his seat and looks concerned.

His side trail leaders Liverpool by four points in the 'as it stands' table.

Scenes in the away end at the Etihad. Those who have made the effort to travel up from London have been rewarded with a thrilling performance by their team.

Whatever the result, they can at least say: "I was there when Townsend scored THAT rocket".

Chris Bevan
BBC Sport at Etihad Stadium

The City fans were just in the middle of a rousing rendition of "stand up for the champions" when Jeffrey Schlupp buried Palace's equaliser in the bottom corner of Ederson's net.... and Andros Townsend's belting volley has left the majority of this stadium in stunned silence.

Leon Osman
Former Everton midfielder on Final Score

Andros Townsend must be 30 yards out and shows great technique. When he hits it, it doesn't move it flies straight. You can't say Ederson had a chance.

It's a contender for goal of the season. I've not seen anything better so far.

This could be a painful afternoon for Palace.

City have their tails up and are in the mood to kill this off before the break.

Image source, Getty Images