Texas quarterback Quinn Ewers suffered a sprained left clavicle in the first quarter of the Longhorns' 20-19 loss to No. 1 Alabama on Saturday and did not return.

"We don't know the severity of the injury," Texas coach Steve Sardinian said after the game. Ewers was taken to the locker room late in the first quarter after the Crimson Tide's Dallas Turner tackled freshman quarterback to the ground.

He later returned to the sideline in street clothes for the second half. After Turner was flagged for roughing the passer after landing on Ewers on the play, the official said he drove Ewers to the turf.

Ewers immediately clutched his left shoulder after the injury and fell to the field while head coach Gary Patterson's special assistants and trainers attended to him.

After going to the sideline, Ewers headed to the medical tent before heading to the locker room with a towel over his head.

He kept Alabama on its heels, going 9-of-12 for 134 yards and completing a 46-yard pass to Xavier Worthy at the Alabama 1-yard line on the previous play.

"I thought Quinn was in really good rhythm when she was in the game," Sarkeesian said. "I felt really good about the way he played tonight against a really good defense."

Card relieved Ewers and Bejon Robinson tied the score at two games at 10-10 on the first play of the second quarter.Card, a sophomore, went 14 of 22 for 158 yards after taking over.

Ewers, a highly touted transfer from Ohio State, made his first collegiate start last week against Louisiana-Monroe, going 16-of-24 for 225 yards and two touchdowns and an interception in the 52-10 win.