Hoke Dantonio Football

Lem Barney, an NFL football Hall of Famer, talks about head injuries at a camp for high school football players in Southfield, Mich., Friday, June 14, 2013.  (AP Photo/Paul Sancya)
Lem Barney, an NFL football Hall of Famer, talks about head injuries at a camp for high school football players in Southfield, Mich., Friday, June 14, 2013. (AP Photo/Paul Sancya)

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