It looks like the Texas Longhorns are going to have to go another week without starting quarterback David Ash. The signal-caller has battled head and shoulder injuries all season, and didn’t play in the Longhorns’ past two games against Iowa State and Oklahoma.

Texas was on a bye this past week, and the team was hoping to get Ash back for a matchup with TCU next Saturday. Unfortunately, that has been ruled out by the team’s football trainer, Kenny Boyd:

He continues to progress in recovery, but QB David Ash ruled out vs. TCU (lingering effects of a head injury), per UT FB Trainer Kenny Boyd. — MBTexasFootball (@MBTexasFootball) October 21, 2013

…Ash will continue to be evaluated and monitored daily and there is no timetable on his return… — MBTexasFootball (@MBTexasFootball) October 21, 2013

In three games this season, Ash has thrown for 760 yards, seven touchdowns, and two interceptions. Texas will continue to go with Case McCoy while Ash recovers.