Meet A.J. Williams 

January, 20, 2012
1/20/12
2:06
PM ET
Name: A.J. Williams

Hometown: Cincinnati

Ht.,wt.: 6-6, 260 pounds
Michigan C Cites Concussions In Decision To Quit
Joe Schad discusses how concussions and a concern over long-term health have helped Michigan center Jack Miller decide not to play football his senior year.
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