DALLAS -- Texas quarterback David Ash suffered an injury to his left, non-throwing wrist in the Longhorns' 63-21 loss to Oklahoma on Saturday, leaving his status for next week's game against Baylor up in the air.
The sophomore quarterback, who entered Saturday's game ranked No. 3 in the nation in pass efficiency rating, suffered the injury with the Sooners leading 56-8 in the fourth quarter. Ash was 13 of 29 for 113 yards with two interceptions.
Texas officials, as well as coach Mack Brown and co-offensive coordinator Bryan Harsin, declined to disclose the extent or severity of the injury. Photos taken on the sideline showed significant swelling to the wrist.
Junior Case McCoy replaced Ash and led Texas to two late scores with a 44-yard touchdown pass to Mike Davis and a 19-yard touchdown pass to John Harris.
If Ash is unable to play against Baylor, McCoy would be the starter.
"It's been a while since I've thrown with those guys," McCoy said of his fourth quarter. "That was good to get in there and get a little timing and walk out of there with hopefully something we can take into next week."
Added Harsin: "I've felt very good about Case all season long. He has prepared himself well. He has come out in practice and has been ready to go. He has the right mindset."
Harsin said McCoy, who started last year against Baylor but lost his starting job for good in the Holiday Bowl, showed the proper mindset in the fourth quarter against Oklahoma. McCoy was 5 of 8 for 102 yards.
"He took advantage of it," Harsin said. "His mind was right. He's a competitive kid that when he gets his opportunity, he is going to take advantage of it. I thought he did that today. So that is something we have to build on with him starting today."
Texas also lost defensive tackle Brandon Moore to a neck injury. Moore was taken to the hospital for evaluation only. Texas officials said he had a sore neck.