STANFORD, Calif. -- Stanford quarterback K.J. Costello's status for Saturday's game at USC is questionable after he took a hit to the head against Northwestern, coach David Shaw said Tuesday.
"We'll see how his injury progresses during the course of the week," Shaw said. "Should hopefully make that decision by Thursday or Friday. It shouldn't be a game-day decision. We should know before game day."
Costello suffered the injury when he received a forearm to the head while in a sliding motion late in the first half. The play did not a draw a targeting penalty from the Big Ten officiating crew, something that drew Shaw's ire after he saw the replay following the game.