With spring ball having come and gone, we'll be updating our Big 12 position group rankings over the next two weeks.
We continue this series with the defensive line:
1. Oklahoma (pre-spring rank: 1): Injuries hit the Sooners' defensive front during the spring, but Oklahoma remains atop the rankings with everyone expected to return before the season kicks off. Charles Walker is one of the Big 12’s top defensive linemen, and defensive tackle Matt Romar returns as a anchor on the inside. Defensive end Matt Dimon, who started every game in 2015, returns to give the Sooners a talented and experienced front.