QB Pachall leaving TCU to enter rehab

College football notes • Drunken driving arrest leads to decision.

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Suspended TCU quarterback Casey Pachall is leaving school for the rest of the semester and entering an inpatient rehabilitation facility.

Coach Gary Patterson made the announcement Tuesday, five days after the junior starter was arrested on suspicion of drunken driving in his second brush with the law in the past eight months.

Patterson said most of the inpatient programs like the one Pachall will enter are 30 to 60 days. If Pachall completes the treatment, the door remains open for him to come back to school and the team.

"Hopefully, what our plan is that he [Pachall] gets himself right and keeps the door open for us as far as an opportunity for him to be able to come back here and enroll in the spring," Patterson said.

Pachall was arrested on suspicion of driving while intoxicated after running a stop sign near the TCU campus last Thursday. That came eight months after Pachall admitted to police that he smoked marijuana and failed a team-administered drug test just two weeks before former linebacker Tanner Brock, his roommate and teammate then, was arrested in a drug sting with three other players and other TCU students.

Filling in for Pachall, redshirt freshman Trevone Boykin was 23-of-40 passing for 270 yards with a touchdown and three interceptions in Saturday's 37-23 loss to Iowa State. That ended the Frogs' FBS-best 12-game winning streak and knocked them out of the Top 25.

TCU (4-1, 1-1 Big 12) plays at Baylor (3-1, 0-1) on Saturday.

Dooley has surgery

Tennessee coach Derek Dooley underwent surgery on his fractured right hip Tuesday and will coach from the press box Saturday at No. 19 Mississippi State.

The school said Dooley had experienced increasing pain in his right hip over the last two months. Dooley underwent an MRI on Friday that showed he had a fracture.