Richard Cohen: It remains staggering that the best - and richest - team in England went into this season with only three centre backs, two of whom aren't even that great

Anon: Manchester City have the weight of history against them at Carrow Road. Only the really top sides have ever managed to win three league titles in a row

Muhammad Owais Khan: Someone said Norwich had defenders out and they were under injury crisis. We decided to play without defence at all. Bye bye Premier League. And it is only September. We can't finish top four with that defence

Manchester City win their 11th corner of the game as Kyle Walker hits a cross off a Norwich player. Kevin de Bruyne whips the ball in, finds Nicolás Otamendi but the defender's downward header is straight at Tim Krul.

Kevin de Bruyne drives into the box from the right but gets the ball trapped under his feet and is ushered over the line and out of play. Good defending from Norwich.

You feel if Manchester City are to get something from this game they need a goal around now.

Phil McNulty
BBC Sport chief football writer at Carrow Road

Norwich City turned the plotline on its head with that goal after Manchester City looked on the brink of mounting a comeback.

Still could of course but Norwich City are in resilient mood at the back and a real threat on the break against a defence that has cracked under pressure today.

Image source, Getty Images

Kevin de Bruyne bends a free-kick into the box, John Stones and Sergio Aguero both attack it but the ball goes straight through and for a second looks like creeping in at the far post but Tim Krul clutches the ball out of the air.

Norwich are starting to look a little leggy now.

Kyle Walker hits a diagonal ball out wide but its too high and goes out of play - another unforced error from a City player.

A succession of corners for Manchester City but all of them fail to really trouble the Norwich defence.

The hosts have every player back at the moment.

Ironic cheers from the home fans as John Stones hits a ball out wide to Raheem Sterling out of play - that's happened far too often for Manchester City in this game.

Time for a double change for the visitors as Kevin de Bruyne and Gabriel Jesus come on for Ilkay Gündogan and David Silva.

Paul: Norwich to do a Leicester?

Kyle Walker has a go from distance but it is a poor, poor effort that sails well wide and he screams at himself in frustration.

Pep Guardiola looks to his bench. A change appears to be in the offing.

Fred Eyre
Former Man City player on BBC Radio Manchester

Nicolas Otamendi will just never learn. He is not built for playing the ball around the back. He dwells on it and it's taken off him like taking a sweet off a child. Two horrendous mistakes off Otamendi in less than 20 seconds.

No changes for the start of the second half by either side meaning Kevin de Bruyne remains planted on the bench. Manchester City have certainly missed his creativity, how long before he is unleashed?

Khan Karn: Man City seem to have different set of rules for them. That is a clear penalty for Norwich. People need to learn it's the officials and not VAR that's the problem

Anon: Should be 3-1 to Norwich, that is a penalty all day long. New rules meant that VAR would pick up errors like that. Not if it's Man City

Right, I've been willing half time to hurry up and finish so we can resume what's been a hugely entertaining game.

The players are finally back out and we're up and running again.

Crystal Palace

Crystal Palace manager Roy Hodgson, speaking to BBC Sport: "It's one of those games that we will just have to write off and learn from and hold our hands up and admit we were beaten by a better team.

"We came here hoping to play as well as they played and we weren't capable of that. We found ourselves staring down the barrel of a gun at half time but fortunately the scoreline wasn't aggravated in the second half and we have been beaten 4-0.

"The fact is we mustn't get carried away with results. For us, it's going to be a very long, hard fight to stay in this league and there will be plenty of games like this where we play teams with power and intensity."

Chelsea

Chelsea goalscorer Fikayo Tomori for BBC Match of the Day:“We just want to take our chances and play for the club. We love this club, it means a lot. To get the goal was brilliant.”

On Frank Lampard: “He is a legend here at Chelsea. He has that respect from the players but he is a great manager. I had him last year as well as a manager. He has a system, we can see his vision and are trying to implement it."

On letting goals in: "We know that clean sheets will come but today we didn’t get it. We need to concentrate on the win and move on to the next game now."

Phil McNulty
BBC Sport chief football writer at Carrow Road

Norwich City received a deserved standing ovation as they went on but make no mistake there has been a change of mood inside Carrow Road.

Manchester City have been mediocre but Sergio Aguero's goal was so timely and sets up the second half perfectly.

Norwich City really impressive.

Sergio Agüero, who returns to the top of the Premier League scoring charts, has now scored with all seven of his shots on target in the league this season. Talk about clinical.

Fred Eyre
Former Man City player on BBC Radio Manchester

It was a good move from Pep Guardiola to switch the wingers. It's worked. It was a beautiful cross from Bernardo Silva and Sergio Aguero was unmarked. As soon as it came off his head, you knew it was a goal. City will be much happier to go in only one down.