City hopes hang by a thread

Manchester City 0 Barcelona 2

The key moment came shortly after half-time when Martin Demichelis was caught on the wrong side of Lionel Messi and chopped down his fellow Argentine just outside the area.

Referee Jonas Eriksson had little choice but to send the defender off but wrongly awarded a penalty that was converted by Messi to put Barcelona, who had been on top without ever really threatening to hurt the hosts, in charge.