Game, set and match? Juan Mata continues his fine recent form with a third goal as United catch City on the break. Marouane Fellaini wins it back, Daley Blind pops a quick pass into the feet of Wayne Rooney and he frees Mata in behind.

Possibly offside, Mata keeps his cool to run in on goal and nutmeg Joe Hart.

Image source, PA

BBC Sport pundit Robbie Savage at Old Trafford

"David Silva has gone more centrally now and that's where he can influence things a bit more."

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Jesus Navas may be the fastest winger in the Premier League but that's not all what it's about. Good buy on Fifa mind. Where it is.

In the real world, how can City get back into this game? A deflected Frank Lampard goal maybe?

Jim in Cambridge: Jesus Navas must be the worst winger in the Premier League. Awful.

Michael in Essex: Manuel Pellegrini has been found out this season. We need to reinvest or he needs to go.

Dan in London: That Ashley Young missed sitter, both defensively and offensively sum up how poor the quality has been in this league this year.

James Milner in some pain after he's clattered by Phil Jones - no booking for the United defender though. Samir Nasri is coming on for the visitors, and he does indeed replace Milner.

Image source, AFP/GETTY

BBC Sport pundit Robbie Savage at Old Trafford

"Maybe Ashley Young was worried about Joe Hart coming off his line with the header. It was probably just offside anyway."

A terrible header! Ashley Young is offside so it doesn't really matter, but that was a horrible effort. Unmarked, six yards out, and he barely made contact. Closed his eyes and hoped for the best...

Image source, AFP/GETTY

That's better, Yaya Toure and David Silva swapping passes in a tight pocket of space on the edge of the area but Toure's left-footed shot is easily blocked by Ander Herrera.

The Manchester City who looked like taking United apart in the opening minutes are nowhere to be seen. The Manchester City who won the league last year are not really evident to be honest.

BBC Sport pundit Robbie Savage at Old Trafford

"Marouane Fellaini's got his eyes on the ball all the time and is using his arms for leverage. It's not an intentional elbow on Martin Demichelis."

Martin Demichelis gets an arm in the face from Marouane Fellaini, ref Mark Clattenburg whistles to stop the game for a head injury and Demichelis springs to his feet instantly. Clatts' face is a picture. You've been done.

Image source, Reuters

Niklas Lanwehr: Yaya Toure scores 20 goals a season no-one cares about him not tracking back. This season it's obvious he's a liability in big games.

Vinodh Natarajan: Wayne Rooney has had a very quiet game, not legging runs, losing passes, he could come off.

Andrew Smith: Not surprised to see Vincent Kompany come off he seemed to hold his thigh before he made that rash challenge in the first half.

BBC Sport pundit Robbie Savage at Old Trafford

"What a scrap there! Joe Hart made a mess of the free-kick, but recovered with a save. Great pressure from United."

What a stramash! Wayne Rooney's free-kick is clawed out by Joe Hart, United keep it alive and Michael Carrick has a follow-up brilliantly saved by his England team-mate. Fernandinho boots a clearance into a team-mate's face, all the hallmarks of a classic goalmouth scramble.

City get away with it...

Slow start to the half, in contrast to the first 45 minutes which flew by at drum and bass tempo. Wayne Rooney wants a free-kick but Juan Mata is then tripped seconds later in a dangerous area. Free-kick given.

Image source, PA

BBC Sport pundit Robbie Savage at Old Trafford

"Three substitutes warming up for Manchester City. When will Manuel Pellegrini think about making an attacking change?"

Good defending from Michael Carrick to stop Jesus Navas bursting down the right. The pass was undercooked from James Milner though - he had plenty of grass to hit. Navas would have been gone.

City have Samir Nasri, Edin Dzeko and Frank Lampard on the bench if they need them, but they craft a decent opening straight away, David Silva chesting down a cross from the right but he loses his footing at the crucial moment.

Game on!