If he's not slow then he's just a lazy bastard then as people were running past him all game like he wasn't there and he never got even close to catching anyone. As for his fitness, I'm sure it will improve as it frankly couldn't get any worse. Never seen a player look so tired after an hour, especially considering he hadn't exactly been busting a gut to get back anyway. But the point being, fullbacks have to be the fittest players on the pitch and barring some kind of a miracle, that's not ever going to be him. It's like expecting David Silva to play LB, it's just not going to work. He's nothing like Delph, who no one would doubt his athleticism.