I think Wayne Rooney was literally just acknowledging Diaby *is* a football player. You know, in the same way that he acknowledges a "nee-naw" by pointing a grubby finger at fire engines as they drive past him. He does the same thing with "woof-woofs" and "moo-moos" too. He's used to doing it because Coleen usually rewards his acute observational skills with an ice cream or by blowing a raspberry on his belly.