Coach Hal Mumme said Monday redshirt freshman J.J. McDermott will start.

"Chase cannot go. He cannot play," Mumme said. "J.J. will be playing."

Holbrook was hurt in the fourth quarter of a 20-17 victory over Arkansas-Pine Bluff on Sept. 29. He returned with 56 seconds remaining and directed a 35-yard drive, capped by Paul Young's decisive 37-yard field goal.

Holbrook started last weekend's 58-0 loss at Boise State but was shaken up on New Mexico State's first possession and left in the second quarter. McDermott took over but struggled, and the Aggies finished with 108 yards passing and minus-23 yards rushing.