On Thursday, starting left tackle Toa Lobendahn showed signs of what USC coach Clay Helton called a "skin infection." He needed IV treatment and did not make the trip. By halftime, two other starting offensive linemen were also sidelined.
Right tackle Chuma Edoga left with an ankle injury while right guard Viane Talamaivao left with a pectoral issue. As a result, the Trojans were playing with two true freshmen on the offensive line.
In addition, linebacker Jordan Iosefa and receiver Jalen Greene collided before the game, according to the USC radio broadcast. They did not play because they were in the concussion protocol, Helton said.
Defensive lineman Marlon Tuipulotu did travel as a result of a back injury.