Wide receiver Marqise Lee is "very questionable" with a sprained knee and is unlikely to play Thursday against Arizona, interim coach Ed Orgeron said.
Lee, projected as a first-round pick by NFLDraftScout.com, said last week he was feeling better. But the bye week wasn't sufficient time for a full recovery.
Lee hasn't returned to practice since he was injured Sept. 28 at Arizona State in coach Lane Kiffin's final game at Southern Cal.
The Trojans are hopeful running back Silas Redd can get on the field for the first time. He practiced without limitations for the first time this season and would return as part of a three-back rotation with Justin Davis and Tre Madden.