https://www.msn.com/en-us/sports/nfl/ex-nfl-qb-who-had-80-broken-bones-is-battling-brain-trauma-and-cte-story-of-super-bowl-xxviii-champion-bernie-kosar/ar-AA1gbEcI?ocid=hpmsn&cvid=fc19f8b8b1b24a81875847f068118d6d&ei=13
12 documented concussions, and probably many more. Plus 80 broken bones.
12 documented concussions, and probably many more. Plus 80 broken bones.