Connor Cook returned to the lineup for No. 6 Michigan State, starting Saturday's game against Penn State after missing last weekend's victory with a shoulder injury.
The star quarterback was injured against Maryland two weekends ago and was sidelined when the Spartans upset unbeaten Ohio State a week later.
With Michigan State needing a win over Penn State to wrap up a spot in the Big Ten championship game, Cook returned Saturday and took the first offensive snap for the Spartans.
Tyler O'Connor and Damion Terry played quarterback in Cook's absence against Ohio State. Coach Mark Dantonio said during this past week that Cook's status might not be determined until the day of the game against Penn State.
Connor Cook threw three touchdown passes in his return from a shoulder injury, and No. 6 Michigan State wrapped up a spot in the Big Ten championship game with a 55-16 rout of Penn State on Saturday.
The Spartans (11-1, 7-1) will play unbeaten Iowa for the conference title next weekend, with the winner in good position to advance to college football's playoff. Michigan State is No. 5 in the selection committee's ranking.
The Spartans finished tied atop the Big Ten East with Ohio State, and Michigan State upset the Buckeyes last weekend with Cook on the sideline. The senior came back Saturday and was brilliant against Penn State (7-5, 4-4). Cook went 19 of 26 for 248 yards.