CORVALLIS, Ore. — Oregon State backup quarterback Lyle Moevao will need surgery after injuring his ankle during practice.

The senior started most of last season but had a slow recovery from offseason shoulder surgery and settled into a backup role behind Sean Canfield. He was injured Tuesday when a defensive end fell on the back of his right foot.

He'll have surgery Friday to repair ligament damage, likely ending his college career.

Coach Mike Riley says he'll inquire about a possible sixth year of eligibility for Moevao, but that was improbable.

Redshirt freshman Ryan Katz will be Canfield's backup when Oregon State hosts UCLA on Saturday.