With Samaje Perine out for two or three weeks after suffering a pulled muscle in his legs in Saturday's 38-17 Oklahoma win over Kansas State, Joe Mixon is the Sooners' No. 1 running back.
Things haven't been easy for Mixon in recent weeks though. As the video below from The Oklahoman's Tim Money shows, the sophomore has repeatedly taken big hits the last two weeks, especially against Kansas State.
Several of the hits Mixon took went to his head.
With Perine out, Oklahoma has just two healthy scholarship running backs—Mixon and freshman Abdul Adams.