I would worry about Trafford if he was the only keeper in the PL struggling at corners but he isn't, not by any means, you can see it in every game, keepers getting blocked and obstructed at every corner, and very rarely do you see any keeper catch the ball from a corner, or even get a good clear punch on it. Villa had a goal disallowed for a foul on the Sheffield keeper last night, it's rife. Trafford isn't helped by the fact that our defenders are so weak in the air as well, a header out of the box from a corner is as rare as rocking horse ****e.