Combine Mike Balogun's eligibility challenges (thanks a lot Seminoles) and the latest news, and we have a problem with our backup middle linebackers. From Tulsa World:

Oklahoma freshman Tom Wort, whose promising camp combined with Mike Balogun’s eligibility issues had made him a potential backup to middle linebacker Ryan Reynolds, suffered a knee injury during practice Thursday night.

"He was just jumping up for a ball and came down funny," OU coach Bob Stoops said. "We’re worried about his knee. We’ll see what the doctors say. I can’t detail it here today without them having a chance to thoroughly look at it."

If neither can play, that probably leaves Austin Box to shift back over to the middle, and someone else will fill in behind Travis Lewis.