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Caleb Williams sheds multiple tacklers on incredible 59-yard run (0:37)

The running back made a play with his feet and ran 59 yards for a touchdown. There is a time and a place for this.

6:47 PM ET

Lincoln Riley said on Sunday that the status of USC's starting quarterback, who is a leading contender for the Heisman, is not known.

The nature of this is pretty severe, but those things are different for everyone. We will try to rehabilitate him and hope to have him available.

Williams was injured during the first quarter of the conference title game. Williams injured his leg after breaking off a 59-yard run. The 20-year-old played in the game, but was limited in the loss to Utah.

Riley said that he is a warrior. He was the one who fought through it the other night.

If USC were to play within the next two weeks, Williams would not be available, according to Riley. The sophomore may be able to play in the bowl game if he is healthy.

Miller Moss will be the backup if Williams is unable to play. In three games, the freshman completed 12 of 14 pass attempts for 159 yards and a touchdown.