The Mustangs enter the game 3-0 with the No. 11-ranked offense in the nation.
The running back was arrested in May for possession of drugs.
The Frogs are now ranked 25th in the AP top-25 poll.
The Horned Frogs have only played one game this season, as they are coming off of a bye week.
The true freshman threw for 165 yards and a touchdown.
Patterson says both quarterbacks will see time in the first quarter on Saturday.
From a giant video screen to beer sales, TCU Football will have major improvements to the gameday experience.
Jalen Reagor feels like his outstanding play has been overlooked and that he has something to prove. Photo by Cristian ArguetaSoto.
The Frogs roster of quarterbacks includes 3 transfers, 2 returners, and 1 true freshman and head coach Gary Patterson has yet to name a starter.
Olonilua was released from Walker County Jail after posting $4,000 bond.