The embattled wideout, who was the subject of medical rumors all summer long, did not travel with the team to Stillwater.
Head coach Mike Stoops refused to comment on the specific reason, though he did say that Criner had a medical issue earlier in the week. At the time, Stoops had hoped Criner would suit up.
"Our offense, as you can see from a week ago, is not just one player," Stoops said at the start of the week. "Juron has a big-play knack, but we have other players who can make plays."
Arizona WR Dan Buckner will likely get the bulk of the looks in Criner's place.