Junior Tyler O’Connor started for the Spartans and Damion Terry entered the game during the first drive.

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O’Connor is 6-of-11 passing this season for 44 yards with a TD and an interception. He has five carries for 17 yards.

Cook suffered a right shoulder injury in last week’s win against Maryland. He took part in warmups about an hour before the game.

Cook owns a 32-4 record as Michigan State’s starter, and that includes a win against Ohio State in the 2013 Big Ten championship game.