Yaya Toure drags a weak shot well wide from 20 yards. The hosts well on top but little created yet.

Image source, PA

A horribly bitty start to proceedings. Now Samuel Eto'o is down holding his back after taking a ridiculously high boot by Eliaquim Mangala. The defender is booked but that could be red. What is he doing with his studs up there?

Liverpool manager Brendan Rodgers: "I thought the players gave everything and in the second half we looked like we could make breakthrough. Sunderland proved this year that they are a hard team to beat. I can't fault the players.

"They needed a wee bit of luck and it didn't come. If you can't win it's important you don't lose. We've taken seven points from nine this week which is a good return for us."

On the penalty appeal: "I think the referee made the right decision."

Phil Neville
BBC Sport

"Surprised there's no Ross Barkley in the Everton team. I was looking forward to seeing him on this stage!"

Arne: Sergio Aguero is a top player but he gets injured way too often (see 6 mins). I think it's time to cash in before he loses a step.

Hashim: In the long term, City losing Aguero is magnitudes bigger than Chelsea losing to Newcastle.

John Pierce: Number 78? Isn't that a linebacker?, external

Aguero was replaced by 18-year-old Spaniard Jose Pozo, whose squad number is 78.

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Big call for Manuel Pellegrini to bring on 18-year-old Jose Pozo for just his third City appearance as well. Edin Dzeko was getting stripped but perhaps not deemed fit enough to play almost 90 minutes after his own injury problems?

Image source, Reuters

A subdued atmosphere early on at Etihad. Sergio Aguero's early substitution appears to have taken the wind out of the home fans sails. They need something to happen.

Former Manchester City midfielder Dennis Tueart
BBC Radio Manchester

"Sergio Aguero looks a big doubt for the Roma game [on Wednesday] - you could be talking about ligament damage, the way he's holding his left knee.

"Bringing Jose Pozo on is bold, it will be a job and a half for him to try and emulate Aguero, but it was a question of Edin Dzeko's fitness levels, he's been out for three or four weeks. I'll be interested to see who plays the leading man up front - Samir Nasri? Or Pozo on his own?

"There was so much anticipation going into this game after today's results, but all of sudden that is a real kick in the teeth for City, Everton could sense blood."

Image source, PA

Seamus Coleman cautioned for pulling back Gael Clichy. That challenge would not have been out of place on a rugby field.

Gary Lineker
BBC Sport

"Worrying-looking knee injury sustained by Sergio Aguero. Anything serious would be a massive blow to him, Manchester City, and football lovers everywhere."

Don't forget Manchester City travel to Roma for a must-win match in the Champions League on Wednesday. They will not want to be going there without Sergio Aguero.

On the field, Everton have made a decent start with plenty of the possession.

Chris Bevan at Etihad
BBC Sport

"Sergio, Sergio" sing the Manchester City fans as the Argentine limps gingerly around the perimeter of the pitch. I suppose the good news is that he does not need a stretcher, and he even manages a wave in return, although he does not look particularly happy."

Tears in Sergio Aguero's eyes as he is replaced by 18-year-old Jose Pozo. This doesn't look good for City.

Former Manchester City midfielder Dennis Tueart
BBC Radio Manchester

"As he went down Sergio Aguero was holding his left knee, it didn't look too bad on the replay, but he is certainly not one to stay down. He's been shaking his head as well."

Sergio Aguero limps gingerly to the sideline. No change yet...

Edin Dzeko is getting stripped as Sergio Aguero shakes his head. Shocking news for City if this is a bad injury.

Sergio Aguero is down holding his knee after tumbling under a challenge from Muhamed Besic. Not what City want ahead of a crucial Champions League match with Roma in midweek. A hush at Etihad as he receives treatment.

Burnley manager Sean Dyche, speaking to BBC Sport: "I'm a bit disappointed overall because I thought we produced a good performance. The first goal had a bit of luck from their point of view, the second wasn't so good from our point of view.

"We made chance after chance, particularly in the first half and Rob Green made one outstanding save. It might be up there with save of the season."

Manchester City were eight points off Premier Leaders Chelsea just a fortnight ago, win tonight and the gap is three. It looks like we have a title race on our hands again. Game on.

Former Manchester City midfielder Dennis Tueart
BBC Radio Manchester

"If Manuel Pellegrini put on his tactics board today's results - Chelsea losing and Arsenal losing, that will be motivation enough for his players to go and get a result tonight.

"The City system looks balanced, Sergio Aguero's up front on his own and I'm still waiting to see who will be the supporting midfield player, Yaya Toure from the middle or Samir Nasir from the wing.

"With Everton playing wing-backs, Man City's wide midfielders will have to be wary of players going forward in that position."