Concussion to keep Oklahoma RB Brennan Clay out vs. Air Force

Oklahoma freshman running back Brennan Clay will be held out of Saturday's game against Air Force due to a concussion.

Clay was carted off the field in the fourth quarter of the Sooners' 47-17 win against Florida State on Saturday. Coach Bob Stoops said Tuesday that it's unclear when he'll play again for the seventh-ranked Sooners.

Clay had become the third-string running back for Oklahoma after fellow freshman Roy Finch suffered a hairline fracture in his ankle during training camp.

Stoops says Finch and linebacker Austin Box, who is recovering from a back injury, also won't play against Air Force.