By JIM VERTUNO

AUSTIN, Texas (AP) — Texas quarterback Arch Manning was “making good progress” in practice, coach Steve Sarkisian said Thursday, but his status to return from a concussion in time to play against No. 9 Vanderbilt was still uncertain.

Manning has been in concussion protocol since being injured at the beginning of overtime in No. 20 Texas’ 45-38 win over Mississippi State last week. Backup Matthew Caldwell came on to throw the winning touchdown as Texas rallied from 17 points down in the fourth quarter.

Manning has spent the week in Texas’ concussion protocol and he returned to practice Wednesday. He was listed as questionable on the team’s Wednesday night injury report to the Southeastern Conference.

“I don’t have anything beyond for Arch just because we have to fol

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