Last Updated: 17/02/13 3:51pm
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
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
Maicon aims a chip from an impossible angle (City resorting to trying to walk the ball in), and Ashdown jumps to claim
Yaya Toure strikes at goal and Ashdown palms away, before Rodwell heads against the bar from the rebound when it looked easier to score
Leeds have actually improved since the third, but they have still had just one shot on target in the match
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.
The start of this half very much following the first, City passing it comfortably around defence and midfield
Manchester City immediately onto the front foot, and Byrom takes a blow to face in his own area. The youngster will receive treatment
And that's half time. City comfortable after their early onslaught brought two goals. Next goal understandably crucial.
McCormack crosses, and the ball drifts just behind Byrom, allowing City to clear. Leeds then win a free kick near the corner flag
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
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
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
Again David Silva is given too much space when crossing the halway line, but his pass drifts out of play
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
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
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
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
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
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