Oklahoma freshman running back Joe Mixon, the school's top recruit, pleaded not guilty on Monday to a misdemeanor charge of assault.
Mixon is accused of knocking a woman unconscious with a punch and breaking several bones in her face. Mixon has not participated in team activities since the July 25 incident at a local restaurant.
As a senior at Freedom High School in Oakley, California, he scored 30 touchdowns from scrimmage. Oklahoma has not decided on Mixon's status. The Sooners were ranked No. 4 in the preseason poll released Sunday.
Mixon posted bond and is to return to court on Sept. 23.