/cdn.vox-cdn.com/uploads/chorus_image/image/20704495/133517743.0.jpg)
The for the third time in four games, the Texas Longhorns will be without starting quarterback David Ash, as the junior gunslinger has been ruled out for next weekend's game against the Oklahoma Sooners.
Ash is still suffering from the lingering issues resulting from the head injury he sustained against BYU in the season's second game. After the first half against Kansas State two weeks ago, Ash left with recurring symptoms from that concussion.
The Longhorns also announced that back-up cornerback Sheroid Evans, who looked poised for a breakout junior season at times during fall camp, is out for the season with a torn ACL he suffered against Iowa State on Thursday night. Redshirt freshman Bryson Echols, the DeSoto product flagged for two penalties against BYU that were costly on special teams, is likely next in line to see playing time at the position.