Sims was dismissed from the team last week for a violation of team rules. The Tulsa World reports that prosecutors accuse Sims of forging a bank withdrawal slip with an account number belonging to one of his teammates.
He's accused of forging two withdrawal slips -- one for $500 and one for $200.
Court records did not list an attorney for Sims. His high school coach in Abilene, Texas, tells the newspaper that Sims said he had an agreement with the teammate to borrow the money.
Sims carried 31 times last season for 242 yards and two touchdowns.