Mills was suspended indefinitely from the LSU football team after he was arrested in May for allegedly punching a woman. East Baton Rouge District Attorney Hillar Moore announced the charge to The Advocate on Monday.
The simple assault charge carries a maximum fine of $1,000 or six months in prison.
On Sunday LSU coach Les Miles announced Mills would not be with the team to start preseason on Monday. LSU has said it will wait until the legal process concludes before any punishment is given out beyond his indefinite suspension.
Mills, a junior, started every game during his first two seasons with the Tigers. Last season he had 67 tackles and three interceptions.
- Paul Palladino