City took their time to break Watford down.... but once they did the outcome was never in doubt.

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A few handbags between Kelechi Iheanacho and Watford's Valon Behramii after they battle for the ball - but that is the nearest we have come to any late drama here.

City are still content to sit back on their lead. Watford are seeing a lot of the ball but they are still yet to test City keeper Joe Hart.

Time for another City change. Kelechi Iheanacho is coming on for his debut, replacing Raheem Sterling... who departs to loud applause after opening his account for his new club.

Credit to Watford, they are giving this a go but City's defence is not exactly wobbling.

Image source, Reuters

Watford have not had a single shot at goal today, either on or off target - all four of their attempts have been blocked. It is very hard to see them turning this game around with 10 minutes to go. 

A final change for the visitors. Ben Watson, who scored the winning goal for Wigan against City in the 2012 FA Cup final, is on for Etienne Capoue. I don't see any similar late heroics happening from him this time...

Just as I write that, City come forward again and Yaya Toure fizzes a shot a few inches wide. The home side are in complete control of this match now.

Safe to say that City don't look too bothered about extending their lead. David Silva, who has been exceptional again this afternoon, is replaced by Fabian Delph.

City are looking very comfortable here, and some of the scores elsewhere will make their fans even happier... especially the one from Stamford Bridge.

Image source, BBC Sport

Another change for Watford, Miguel Layun is on for Odion Ighalo.

Hang on, maybe this game isn't quite over yet. Troy Deeney's clever dummy gives Ikechi Anya space for a shot and it takes a smart block from City defender Bacary Sagna to divert the ball to safety.

Sebastien Prodl takes out City striker Sergio Aguero and quickly finds himself in the book.

 A first change for Watford. Ikechi Anya is on for Almen Abdi. A big ask for him to change the direction of this game though.

The Hornets have no choice but to get forward now but they are leaving gaping holes behind them when they do. City break and Bacary Sagna would be in if Raheem Sterling had got the correct weight on his pass.

It's still early days, of course... and this game is not over yet... but things are looking very good indeed for Manchester City right now...

Image source, .

Man City are not finished yet by the looks of things. This time Raheem Sterling turns provider, with a low cross from the right, but Sergio Aguero slips as he tries to turn it home and scuffs his shot horribly. 

Hmmm, not much of a response from Watford so far. Troy Deeney has pushed up a bit but his team-mates are still sitting very deep - surely they will have to open up eventually.

Nineteen passes in the build-up to that Raheem Sterling goal for Manchester City, as shown below.  Not sure where the Watford defence was either.

Image source, Opta