(AP) -- About the only thing that's certain about the Oregon Ducks at quarterback is there's a lot of uncertainty.

Vernon Adams Jr., who has a broken index finger, sat out of last weekend's 41-24 victory at Colorado while backup Jeff Lockie and former walk-on Taylor Alie tag-teamed for the Ducks .

There could be more of the same this Saturday against Washington State. Coach Mark Helfrich isn't saying if he'll rotate QBs.

Adams, who transferred to Oregon for his final year of eligibility after a stellar career at Eastern Washington, broke his finger in the season opener against his former team. He tried to play in both of the Ducks' losses, to Michigan State and Utah, but was clearly impacted by the injury.