The home side had Dedryck Boyata sent off after just five minutes as he brought down Marouane Chamakh and was deemed, rightly, to be the last man and was therefore red carded.
Samir Nasri scored soon after following a great one-two with Andrei Arshavin and though City broke a few times Lukasz Fabianski pulled off some smart saves to prevent Man City levelling. Cesc Fabregas had a chance to put the Emirates side two goals to the good but his spot kick was saved well by Joe Hart.
Mid way through the second half Alex Song smashed in from inside the box to give Arsene Wenger’s side an unassailable lead. As usual the Gunners were profligate in front of goal, attempting yet another pass instead of firing on goal but they were still in total control of the game and deserved all three points against a City side who were rapidly losing the midfield battle.