I don't think he was awful but he wasn't good overall. He messed up when he gave the ball away twice which led to Falcao's first goal. But that's not normally like him. And he just stood their while Atletico were combining quickly when creating their second goal. And when Falcao was sent through, he didn't bother to run back quickly, he just stood still, but Frank did try to get back quickly. He tends to that a lot and that it's incredibly aggrevating. And Arda got far too much space and time throughout the match (but we had a offday so I won't blame him too much for that). He was pretty good in possession of the ball but what he does off the ball is far more important for a player in his role. I mentioned it before, he's very vulnerable when the tempo is high and it showed again, his mind is too slow. That's why I agree with those who say he's not suited for the style we want play. For a team that sits back, he's useful.