Thomas was an outfielder for the Sooners baseball team and appeared in 14 games last season.
Thomas started the next three games for Oklahoma, completing 46 percent of his passes for 342 yards, two touchdowns and four interceptions.
Knight came back for the Russell Athletic Bowl against Clemson and was picked off three times during the 40-6 loss. Oklahoma finished 8-5 (5-4 Big 12) and failed to win 10 games for the first time since 2009.
- Scooby Axson