Nikola Zigic scored first for Birmingham Shortly after that Arsenal were able to equalise through a penalty.The replay showed that Chamakh seemed to go down a bit too conveniently in the area.The ref however – who did not get the benefit of a replay to get a better look – thought it was a foul and awarded the spot kick,which Samir Nasri duly converted. Chamakh was also responsible for the second goal – which in contrast was made up of some pretty brilliant passing and skill…