Former Chelsea defender Khalid Boulahrouz has praised Robin van Persie for the way he has developed his game at Arsenal.

Now with VfB Stuttgart, Boulahrouz said: "As a person and player he has grown enormously in recent years.

"I remember that in his first year as a left-winger at Arsenal he was just cutting inside and running. There's a great difference in how he plays today, he is much more efficient and effective with the ball."