USC's 2012 Biletnikoff Award winning receiver Marqise Lee went down with an injury during Friday's practice on Howard-Jones Field.
With shoulder pads removed, he eventually made his way off the field.
USC head coach Lane Kiffin said after practice he did not know Lee's status, "He fell over there, they took him in to check it out, that's about all I know," Kiffin said.
Kiffin expected to learn more after the conclusion of the press conference, "When we get in there, they'll tell me if he is getting x-rays or something," he said.
Lee carried the weight of USC's offense in 2012, being named the nation's top receiver. He caught 118 passes for 1,721 yards including 14 touchdowns.
Kiffin said it's a "glass half empty" view to think Lee might not be available this season, but said if that's the case "somebody will have to step up.
"Darreus Rogers is playing well as the third guy right now and he'd have to step up and play, like what's happened here before. Next guys up."
Kiffin dissects the film
The Trojans ran 102 plays during Thursday's scrimmage. There were two fumbled exchanges, one resulting in a turnover. "There's good and bad to that," Kiffin explained. "Good for the offense but obviously defensively we want to get more turnovers than that."
Since watching the film, Kiffin said there were missed tackles all around for the defense. "As you expect in a first scrimmage like that with live tackling there was a lot of missed tackles," he said, "especially in those first two series and that showed up." Kiffin continued that the tackling improved as the scrimmage went on.
As for the quarterbacks… all three "took care of the ball" according to Kiffin. No one is standing out through one week of practices, though the race does indeed appear to be down to Cody Kessler and Max Wittek. "I think once again they both – or all three – have really had good moments," Kiffin said. "All three have all had plays they'd want to take back so they have to learn from them and move on.
"Completion percentages were pretty good and I thought they managed the offense with very little penalties so I think if we were able to perform the way we did yesterday in a real game we'd win a lot of games that way."
During Friday's practice, Wittek was intercepted during 11on11 drills by freshman Leon McQuay.
Offensive line with two second-year players
For the third day left tackle Aundrey Walker did not practice. Walker left practice midway through day four of fall camp with an undisclosed injury. The 6-foot-6 300-pound left tackle was at the Trojans scrimmage in the Coliseum, only wearing a jersey and shorts.
In his absence, redshirt freshman Chad Wheeler has been playing left tackle. Kiffin said Friday that Wheeler will compete with Walker for the job.
"Chad has really done a great job over there," Kiffin said. "To flip over and be a freshman and play like he has over there against some really good players. He's going against Devon Kennard and Morgan Breslin everyday."
On the opposite end of the offensive line Friday was fellow second-year player Zach Banner. Banner, 6-foot-9 and now 335-pounds, replaced right tackle Kevin Graf who was not on Howard-Jones Field Friday for unspecified reasons.
Kiffin said Banner appears to be one of the most improved players since spring practices. "I know he's lost a lot of weight, increased his flexibility, playing with better pad leverage," he said. "At the same time he's got a long ways to go too."
Banner's notable play Friday came against defensive tackle Leonard Williams. Williams was on the losing end of the battle, having to sit out a few plays with a trainer.
Did not practice report
Right tackle Kevin Graf, cornerback Devian Shelton, safety Su'a Cravens, left tackle Aundrey Walker, fullback Soma Vainuku, tailback Ty Isaac, tailback Justin Davis, receiver Devon Flournoy.
Silas Redd began practice in a yellow no-contact jersey and finished participating in full drills…Trojans practiced in shoulder-pads only…Steven Mitchell is walking on his repaired ACL, says he jogged on it earlier this week...Tre Madden practiced in a yellow no-contact jersey…Leon McQuay and Anthony Brown each blocked a field goal during special teams drills…