Pachall was injured late in the first half of TCU's 38-17 win over Southeastern Louisiana when an SLU defender's knee came down on the forearm of his non-throwing arm.
The injury leaves the Horned Frogs with Trevone Boykin as their starting quarterback. Boykin started the final nine games last season after Pachall left the team to seek treatment for substance abuse.
FORMER TULSA, LAWTON MAC KICKER WALKS ON
Former Lawton MacArthur kicker Daniel Schwarz, who was Tulsa's kicker last season, was added to Oklahoma's roster before Saturday's game.
Schwarz was dismissed from the University of Tulsa in the spring for academic violations.
He was 12 of 18 on field goals and 52 of 59 on extra points for the Golden Hurricane last season.
The walk-on will have to sit out this season.
Schwarz was an Oklahoman All-Stater as a senior.
Oklahoma kicker Michael Hunnicutt, who made three of his four field-goal tries Saturday night, is a junior. The Sooners have two other kickers on the roster — junior Nick Hodgson, who is handling kickoff duties, and sophomore Eric Hosek.
RIGG TRAVELS HOME WITH WVU
West Virginia linebacker Doug Rigg returned to Morgantown with the team early Sunday morning after suffering a scary injury late in the game.
Rigg collided helmet-to-helmet with teammate Karl Joseph and was motionless on the field before being transported to a waiting ambulance.
Rigg was moving as he left the field.
Rigg posted on Facebook that he had suffered a concussion on the play.
BY JASON KERSEY AND RYAN ABER