Sanchez could be the difference between a good season and a great season. The striking positions is the only one we lack real depth, and he fits perfectly into how we play, comfortable anywhere in a front 3, all action style suiting the pressing game, scores and creates chances. He's really the last piece. Against Bristol City, we created the chances, but were let down in the final third. I wouldn't worry too much about his age either. Van Persie was older when he joined United that season, and look at the impact he had. If we get 3 good seasons out of him, then brilliant.