LOS ANGELES (CBS) – Two former Serra High School Standouts, Robert Woods (WR) and George Farmer (RB/WR) sat out of USC practice Thursday.

“Robert Woods did not do much at all,” USC coach Lane Kiffin told reporters. “So I obviously hope to have everybody there, especially with Robert and (WR) George (Farmer) that changes a lot of plans on special teams and offense.”

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Woods has been battling ankle injuries all week. He missed Tuesday’s practice as well, but practiced Wednesday, wearing the yellow non-contact jersey

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Woods, listed at 180-pounds, has been catching a lot of balls behind or right at the line of scrimmage, leaving him very vulnerable to injuries.

Farmer continued to sit out practice after sustaining an ankle injury, Tuesday.

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Both are questionable for Saturday’s big match up against No. 4 Stanford.