Ash did not attend the Longhorns' 44-23 loss to Mississippi on Saturday on the recommendation of team doctors. Coach Mack Brown said Monday that move was made because trainers felt the lights, movement and other stimulation of a game could set back Ash's recovery.
"It obviously had nothing to do with us," Brown said. "We'd like for him to be on the sideline and be out there. They're monitoring him now to see if he can practice on Tuesday."
Ash attended practice on Sunday night but did not participate. Once he is cleared by team doctors, Brown said for precautionary reasons Ash will have to wait 48 hours before practicing.
The Longhorns will not get running back/receiver Daje Johnson back this week and he has been ruled out. Johnson suffered an ankle injury against BYU and hasn't practiced since.
"We're not sure when we'll have him back, so we'll have to move on without him," Brown said.
Texas will also continue to evaluate starting receiver Mike Davis after he suffered an ankle injury against Ole Miss. Starting right guard Mason Walters (knee) and right tackle Josh Cochran (shoulder) both left the Ole Miss game and did not return, and their status is day-to-day.
Brown also noted that backup running back Malcolm Brown has been slowed by an ankle issue.
If Ash isn't able to play, senior Case McCoy will earn his eighth career start. McCoy threw for 196 yards and a touchdown against Ole Miss.