The attorneys for Joe Mixon released a surveillance video Friday that shows the Oklahoma star running back punching a female student in 2014.

The video shows Mixon punching Amelia Molitor, fracturing four bones in her face, during an altercation at a sandwich shop near Oklahoma’s campus. He was charged with a misdemeanor at the time of the incident, and the university suspended him for the entire 2014 season.

The video was released after the Oklahoma Association of Broadcasters sued for access of the video, prompting the Oklahoma Supreme Court to rule earlier this month that the city of Norman should release it.

The university issued a statement Friday night, shortly after the video was released.

“University officials were made aware of the content of the video prior to taking action with respect to Joe Mixon,” the school said. “Based on that information, the university immediately suspended and removed Mr. Mixon from the football team for one year, during which high standards of conduct were expected and maintained. It was made clear to Mr. Mixon at the time of his suspension that violence against women will not go unpunished at the university. Coach Stoops has been proactive in presenting training for his team aimed at preventing such behavior in the future. Sensitivity training in the area of violence has been intensified and best practices will continue to be implemented. Mr. Mixon has apologized for his actions and the university hopes that it is an indication that he has learned from his mistakes. We are an educational institution where we hope young people will learn from their mistakes and chart a better future course.”

Mixon also issued a formal apology last month but also suggested that racial slurs were hurled at him, which he says initiated the incident.

“I was not drinking,” he said in the apology, which was sent to The Oklahoman. “I have never had a drink in my life. At the end of the night, a group of apparently drunk people started harassing us. Some of my teammates were wise enough to leave. I did not, and I am sorry.”

Mixon, 20, pleaded guilty to the charge without making an admission of guilt. He received a one-year deferred sentence and was required to perform 100 hours of community service and undergo counseling.

Oklahoma coach Bob Stoops was asked in 2015 why he did not kick Mixon off the team.

“In our situation, we felt this [the suspension] was the right way to proceed,” Stoops said last year. “In the end we felt that he’s been disciplined. He was removed totally from all team activities from that point on. And he’s earned a way to be back to have an opportunity for a second chance to redeem himself with strict guidelines that go with it.”

In 11 games for the Sooners this season, Mixon rushed for a team-leading 1,183 yards and eight touchdowns. Oklahoma plays Auburn in the Allstate Sugar Bowl on Jan. 2.