Boston Celtics guard Tony Allen has pleaded not guilty to three counts of aggravated battery stemming from a fight that escalated into a shooting earlier this year in Chicago.

Cook County state's attorney spokesman Tom Stanton said Allen appeared in court Tuesday to enter his not guilty pleas to all of the counts.

Allen is accused of being involved in an early morning fight at a diner south of Chicago's business district in August. Police said he punched another man in the face, breaking the man's left eye socket.