Texas quarterback David Ash, who has not played since Sept. 21, has been ruled out for the rest of this season because of lingering symptoms from a concussion, the Austin American-Statesman reported.
Ash began the season as the Longhorns' starting quarterback. He suffered a concussion Sept. 7 against BYU, and returned Sept. 21 for the game at Kansas State. However, he left that game when concussion symptoms returned.
He is expected to be ready to return for spring practice.
Ash, a junior, played in three games and is expected to apply for a medical redshirt, which would give him two more years of college eligibility.
Senior Case McCoy assumed the starting quarterback role in Ash's absence. The Longhorns won their first five games after losing Ash, but McCoy threw three interceptions in the loss to Oklahoma State on Nov. 16.