Racial slurring Philadelphia WR Riley Cooper has managed to anger even his own grandma, who says Cooper screwed up and now has to deal with the repercussions.

Cooper's granny Betty told TMZ, "Riley brought it upon himself and he has to deal with the consequences."

Cooper is currently undergoing counseling for his outburst, in which he was filmed at a Kenny Chesney show claiming he'd "fight ever n***er" there. Grandma Betty says Cooper grew up in a fine home, and was never taught any racist sentiments.

Source: tmz.com