I don't usually like using this argument, but some of the fouls he gave were blatantly the result of him not having played the game himself to any kind of decent standard. There were so many everyday 'footballing' incidents that he was blowing up for, the most obvious being the Vinny-Messi shoulder to shoulder challenge.
And what was all that nonsense of giving Valdes a free kick whenever anyone (regardless of which team they played for) went anywhere near him?
Pellegrini was spot on in his criticism of the referee for favouring Barcelona, although he should perhaps keep these things to himself or let another member of staff say it for him. I thought Martin Samuel summed it up well in his match report:
"Behind one goal hung a giant banner summing up the feelings of many: T’estimo, it read — Catalan for ‘I love you’ — but it is not just the locals who are bewitched by their team.
Neutrals are infatuated, too, particularly referees, and Eriksson was no different to most. Blowing up every time Valdes made a poor, flailing attempt to claim the ball was one indication; the odd soft free-kick the other.
Barcelona’s game can be so mesmerising, so damn pretty at times, that it is hard to believe that they get tackled or lose control like mere mortals.
Far easier to blame the brute of an opposing player for hassling, applying pressure and spoiling the ballet."