USC sophomore receiver Robert Woods sat out of practice Tuesday with unspecified injuries and freshman running back George Farmer left practice early with a sprained left ankle, but neither injury appeared particularly serious.
Woods has been limited on the first day of a week of practices before and experienced minimal after-effects. Farmer has had to come out of practice multiple times over the last two months because of ankle sprains, although he has yet to miss any game action since his move to running back. He was carted off the field on Tuesday after he hurt the ankle.
Asked what injury kept Woods out of practice Tuesday, Trojans coach Lane Kiffin said Woods had "a couple of them" and declined to offer more information.
"Robert didn't practice today," Kiffin said. "Hopefully he'll be healthy this week."
Kiffin said he wasn't sure if Farmer would be OK to play this week against Stanford and then said he was "sure he'll be alright."
Woods had 12 catches for 119 yards and two touchdowns against Notre Dame; Farmer carried the ball one time for 11 yards and then missed an open-field tackle attempt on George Atkinson III's kickoff return for a touchdown in the second quarter of the Trojans' 31-17 win over the Irish.