I've managed Arsenal 3-4 times since FM 11 and every single time he starts improving a little bit, gets injured for a few months, gets worse. Rinse and repeat every time. The best I've ever seen him is with 15 finishing and 20/20 speed, only lasted for like 2 games before an injury. I know he has the "injury prone" weakness but he seems to be affected by it more than any other injury prone player I've had
This year I got fed up with his constant injuries and sold him to Real Madrid for $37 mil, never looked back