And that's it. So, so comfortable for City. Many thanks for joining me, give me a follow at @danielstorey85 and have a lovely Sunday evening
We will have two added minutes
Zabaleta fires wide for City. He has operated more in Leeds' area than his own today
James Milner will not grab the headlines in this win, but he has been brilliant today. Industrious and hard working as ever, and as a boyhood Leeds fan, it has been a great day for him
Great play from Dzeko. He turns Lees inside and out before firing low and forcing Ashdown into a low save
The game has really slowed down. It seems as if both sides are happy with that being that now
Aguero comes off to rapturous applause, replaced by Dzeko
Having said that, I suspect that City may well declare at 4-0
City still stroking the ball around well, and if they have the desire this could be 5 or 6
All too easy for City, and Leeds must now be in damage limitation mode
Aguero makes it 4-0, in plenty of space as he finishes comfortably
Maicon aims a chip from an impossible angle (City resorting to trying to walk the ball in), and Ashdown jumps to claim
Aguero turns and shoots in the box, but the sting is taken away by the block
Yaya Toure strikes at goal and Ashdown palms away, before Rodwell heads against the bar from the rebound when it looked easier to score
A second substitution for City, Maicon on for Tevez. Job done from the Argentinean
Norris strikes with his left foot, but it's shanked wide from 20 yards
Jack Rodwell takes to the field, replacing Garcia
Leeds fans Ole-ing, which is vaguely ironic given their lack of the ball today
Chance for City as Aguero squares it for Tevez, but Leeds manage to block clear
Leeds have actually improved since the third, but they have still had just one shot on target in the match
Austin shoots from distance, and that has gone possibly forty yards over
Toure strikes from the edge of the area, but it is deflected and rolls through to Ashdown.
It's just too easy for City. Aguero attacks the touchline and clips the ball across goal, finding Tevez about 2 inches from the line. Game over.
3-0!!! Carlos Tevez scores a third
The start of this half very much following the first, City passing it comfortably around defence and midfield
He is thankfully up on his feet, with cotton wool filling his mouth. Nice look
Byrom looks to be out cold here, and we could be in for a lengthy delay
Manchester City immediately onto the front foot, and Byrom takes a blow to face in his own area. The youngster will receive treatment
Leeds make a half time double substitution, Morison on for McCormack and Norris on for Brown
Join me for more in 15 minutes
And that's half time. City comfortable after their early onslaught brought two goals. Next goal understandably crucial.
We'll have three added minutes
McCormack strikes with power. It's on target but Pantilimon punches away comfortably
Leeds win a free kick on the edge of the box. Chance here
Leeds have improved since City's two goals, but the final ball has been lacking for the most part
Aguero flagged offside as City look to send him through on goal. Looked tight, correct decision
The first half meandering to a close here, City very much content to pass the ball around lazily
McCormack crosses, and the ball drifts just behind Byrom, allowing City to clear. Leeds then win a free kick near the corner flag
Garcia glances a header wide of the target
Milner wins another corner for City, their fifth of this first half which has ten minutes left to run
Javi Garcia gets a strong talking to from Mark Clatternburg after a late clip on Michael Brown. I think you can file that one under retribution
City play the corner short, and Kolarov fires low into the near post. Ashdown is able to hold this time
Yaya Toure fires from 25 yards, and his dipping volley is helped over by Ashdown. Fabulous effort
Byrom slides in on Kolarov and City have another corner. The home side have seemingly stepped up a gear once again
City almost make it three, a Leeds defender slicing wide, before the away side are able to clear the resultant corner
Michael Brown is a player that dislikes a lull, however, and gets involved in a little spat with Carlos Tevez, the city man earning a free kick
White crosses for Leeds, but Tom Lees is unable to get his head on the ball. Kolo Toure did just enough without jumping to put off the Leeds man
It'd be fair to say that after the initial period of excitement, this half has enetered something of a lull
Leeds have a corner. Diouf takes, but City can clear with ease
Your feedback suggests that the penalty decision was harsh. Fair enough,but I do think that if you put up your hands to stop a man with greater pace passing you in the area with the ball, it's asking for trouble
Leeds' fans certainly haven't given up, audibly attempting to raise their team
Again David Silva is given too much space when crossing the halway line, but his pass drifts out of play
Replays showed it hit the midriff of the defender, whilst Diouf loops a header over the bar
Appeals for handball against Nastasic on the edge of the area, but nothing doing
Leeds have managed to get onto the ball, but have looked too open in central defence. Manchester City runners from midfield simply haven't been pressured enough high up the field, and that's something that will frustrate Leeds' manager
Worth mentioning that it was a dreamy penalty, pushed into the top left hand corner. You. Don't. Save. Those.
Not the start the 6,000 Leeds fans (or Neil Warnock) was looking for, and City look bang in the mood here. Beware the wounded animal
It was a soft penalty, but the correct decision for me. You can't pull shirts and hope to get away with it
2-0 City!!! Aguero dispatches the penalty with ease. Game over?
Penalty to City!! Aguero clearly held back
McCormack with Leeds' first shot in anger, which is blocked
Aguero gets in behind the defence and pulls back to Tevez, who strikes the ball at the side netting. Chance a minute for City at the moment
Lees receives some treatment after colliding with his own man Warnock
The corner is cleared but finds its way back to Silva, who rifles the ball wide
Corner to City, Lees sliding the ball behind
Leeds desperately need to enjoy some possession here after the early blow. They have been too sloppy and allowed City to advance with ease
Aguero brought down in the box, but Lees won the ball. The City man should have looked to find Tevez in space there
Yaya Toure and Michael Brown clash, but the referee diffuses the situation. Much ado about nothing, but silly from Toure and theatrical from the Leeds midfielder
Milner brought down rather forcefully near half way
So calm and assured from the Ivorian. He looked tired last week but waltzed round Ashdown and slotted home with ease. Huge task for Leeds now
Fantastic interchanges between Silva, Tevez and Toure ends with the latter slipping the ball home. The perfect start for the home side
1-0 City!!! And what a goal that really is
Varney played down the left by Diouf, but slips as he attacks the full back
Leeds understandably looking rather direct at the moment in an attempt to settle into the match
A short backpass almost lets in Aguero, but Ashdown is quickly out to block the danger
Leeds enjoying the ball early on and win a free kick on half way
Lovely, with the sun shining there is something of a kit clash.
We are underway
That astmosphere will be assisted by 6,000 Leeds fans who have made the trip across the Pennines
Atmosphere building nicely at the Etihad. A full crowd for what City fans will presumably see as a season-saving competition. It's also a sunny day in Manchester too, which is a nice touch
Stat Attack: Neil Warnock managed Notts County in the fifth round of the FA Cup against Manchester City 22 years ago
Just under twenty minutes until kick off, and I should also let you know that today's referee is Mark Clattenburg. A top referee for a top occasion (with a top commentator)
Whilst I wait for some of your predictions (@danielstorey85), I'll offer my own. I'm plumping for 3-1. Milner will surely fancy a goal against his old club too?
Labelling Joe Hart as 'dropped' may be a touch harsh, in fairness. Costel Pantilimon has consistently been selected for domestic cup competitions this season.
Worth pointing out that Mancini has made six changes for this game from the defeat at Southampton. Pantilimon, Kolarov, K Toure, Nastasic, Milner and Tevez into the side
Scott McCunnell has been in touch: "Gutted today stuck in this warehouse working should have phoned in sick I say 3-1 milner tevez and yaya". Gutted? you get to follow it on here you lucky lad.
Oscar makes it 2-0 at Stamford Bridge. Remember that that sees Chelsea through to the fifth round, the same stage as City and Leeds meet in shortly
So, Neil Warnock has chosen to bench new signing Steve Morison, whilst Jamie Ashdown is brought in for Paddy Kenny in goal, something Leeds have done regularly in cup competitions this season.
LEEDS: Ashdown Byram Lees Peltier Warnock White Brown Austin Varney Diouf McCormack SUBS: Kenny Hall Morison Habibou Tonge Norris Pearce
And now that Leeds team news has arrived...
No Leeds team news as yet, but as soon as it comes through it will be with you. In other news, Chelsea have just taken the lead against Brentford through Juan Mata
Before I go any further, I must tell you to get in touch with me via Twitter with your hopes, thoughts and predictions for the game. Follow me at @danielstorey85
MAN CITY: Pantilimon, Zabaleta, Kolo Toure, Nastasic, Kolarov, Yaya Toure, Garcia, Milner, Tevez, Silva, Aguero SUBS: Hart, Lescott, Clichy, Maicon, Rodwell, Nasri, Dzeko
We have some City team news, and the headline is that Joe Hart drops to the bench for the home side. Tevez and Aguero are picked up front
Leeds, meanwhile, are looking to upset the apple cart in Manchester, and Neil Warnock will be relishing taking on Premier League riches.
There aren't too many managers more under pressure in the country than Roberto Mancini right now, After one point from three league games, the FA Cup provides the club's only realistic opportunity for silverware
The kids are already labelling this one as the 'Michael Brown' derby...
Hello, good afternoon and welcome to our live commentary of Manchester City v Leeds