After significant breakthrough, ex-Bear Jim McMahon finds agony lessening – Orlando Sentinel
Jim McMahon broke his neck playing for Vikings, and found out about it 17 years later – Twin Cities
Ex-NFL star Jim McMahon spreading gospel of golf, new treatment
Jim McMahon broke his neck playing for Vikings, and found out about it 17 years later – Twin Cities
He was in a league of his own': Why the legend of Jim McMahon will never fade - The Athletic
Ex-Bears QB Jim McMahon opens up about dementia, Football
New Mexico Bowl features high-powered offenses in BYU, SMU
The ESPN Daily podcast -- How to listen, episode guide and more - ESPN
Jim McMahon opens up about battle with brain injury
Is Chris Borland an outlier or the start of a trend? With concussion risks still uncertain, it's tough to say