On Wednesday, running back LenDale White tested his bruised left shoulder in practice for the first time since the injury happened.
The injury isn't expected to sideline him Saturday when top-ranked Southern California faces UCLA at the Los Angeles Coliseum, although White told The Los Angeles Times that he will be a game-time decision for the rivalry game.
However, White told the newspaper he was encouraged by the practice session.
"It felt good being out there, just running around giving my teammates hope, or myself hope, that I can play this game," he told the newspaper.
And coach Pete Carroll told The Times that he expects White to be in the Trojans' backfield Saturday.
"I don't know how effective he's going to be, but he's going to give it a go," Carroll told the newspaper.
White acknowledged that he won't know the true condition of his shoulder until he gets into the game.
"From the first play I get in and hit somebody or not, that's when I'll know if I'm going to be able to go at 100 percent," he told the newspaper. "Right now, I feel like I'm healthy. I mean, it hurts. Of course, it's going to hurt, but it doesn't hurt that bad."
White has rushed for 1,024 yards and a team-leading 19 touchdowns this season.
White, a junior who has carried 163 times, was in obvious pain after being hit while carrying the ball during a team drill early in Sunday's practice. He was later carted to the locker room. After having his shoulder iced, he said he felt better.
USC (11-0, 7-0 Pac-10) enters the game having won 33 straight games, 26 in a row at the Coliseum, and its last six against UCLA.
Information from The Associated Press was used in this report.