USC defensive tackle Antwaun Woods left Friday's football practice with his left arm in a sling after sustaining an elbow injury.
Head coach Steve Sarkisian said the injury occurred during a lineman drill between the offensive and defensive players.
"X-rays are negative, which is very positive," Sarkisian said. "I'd imagine it's going to be one to two weeks...maybe 10 days. I don't know exactly what it is, but it is nothing structurally wrong, which is positive."
With Woods out of the lineup, USC once again will be practicing without their complete defensive frontline. Preseason All-American Leonard Williams missed all of spring practice as he recovered from shoulder surgery. Both Woods and Williams are capable of being disrupting opposing offenses, but combined they are a destructive force.
Woods really blossomed during spring practice and established himself as the top defensive lineman in Williams' absence. The Trojans need someone to fill the void at nose tackle left by George Uko's decision to declare early for the NFL Draft. (He went undrafted, but signed as a free agent with the New Orleans Saints.)
USC is already missing Woods' presumed backup, Kenny Bigelow, who is out for the season after tearing his ACL in voluntary summer workouts. Redshirt junior Cody Temple and junior college transfer Joey Augello were listed behind Woods and Bigelow at the nose tackle position on the depth chart released by USC prior to Fall Camp.
If the injury turns out to be any more severe than a 1-2 week absence, the coaching staff could potentially move Williams back inside where he played often last season in Clancy Pendergast's 5-2 multiple defense. With Woods out, junior college transfer Claude Pelon or Texas Tech transfer Delvon Simmons could also slide over from their defensive tackle position.