Sagna admits Arsenal struggling without Man Utd's Van Persie
He told atlantiquefootballclub.com: "We miss Van Persie - he carried the team on his own last year and he's doing it again with United this season. It's incredible. With a player like him it clearly makes the difference. He's impressive. I didn't think he was capable of doing what he's doing. He had quite a lot of injuries. Scoring so many goals isn't given to everyone."