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Michigan Wolverines quarterback Jack Tuttle announced on social media that he would be retiring from football after suffering his fifth concussion.
Reports indicated that the 25-year-old senior had been "dealing with some lingering issues" during the offseason, and Tuttle didn't make his debut for the Wolverines until Oct. 5 against Washington.
Tuttle also played against Illinois on Oct. 19.
In two games this season, the quarterback threw for 306 yards and one touchdown against two interceptions.
This article will be updated soon to provide more information and analysis.