Ash suffered a fracture in his left foot during spring practice and will undergo surgery next week, the school announced. He is expected to be healthy in time for fall camp, according to Texas trainer Anthony Pass.
The break is a Jones fracture, which occurs at the base of the fifth metatarsal connected to the small toe. It causes pain, swelling and difficulty walking.
Ash missed more than 10 games last season due to concussion-related issues. Texas confirmed Friday that Ash's medical hardship waiver was approved for the 2013 season. He enters this fall a junior with two seasons of eligibility.
The Longhorns' starting quarterback in 2012, Ash has thrown for 4,372 yards and 30 touchdowns in 28 career games and earned praise for his play in spring practices this month. He was fully cleared by UT trainers to participate in practice after his concussion symptoms had subsided.
Ash could face more competition for his starting job when he returns. Former USC quarterback Max Wittek has taken multiple visits to Texas and is expected to make his decision in the near future, and ESPN 300 signee Jerrod Heard will join the program in June.