Posted by ESPN.com's Tim Griffin
Texas sophomore starting cornerback Aaron Williams is questionable for the Longhorns' game Saturday against UCF with an injury to his right knee, according to the Longhorns' injury report released Friday by Texas head athletic trainer Kenny Boyd.
If Williams can't play against the Knights, he would be replaced in the starting lineup by junior Curtis Brown.
Freshman defensive tackle Calvin Howell will miss Saturday's game while he recovers from a concussion. Freshman guard Mason Walters will miss the game with an injury to his left foot.