San Francisco 49ers Chris Borland retires over repeated head trauma
Chris Borland Retires at Age 24 Over Concussions
Mount Badger: Four greatest Wisconsin products in NFL history
Throwback Thursday Tribute: Linebacker Chris Borland
Mount Badger: Four greatest Wisconsin products in NFL history
inFauquier Summer 2019 by Fauquier Times (52 issues) & Prince William Times (52 issues) - Issuu
49ers' Chris Borland becomes latest young NFL star to retire early - Cincy Jungle
Kansas Football Linebacker JB Brown Isn't Afraid To Deliver, 42% OFF
Chris Borland 49ers highlight.
Throwback Thursday Tribute: Linebacker Chris Borland
Chris Borland BTN All Decade, The first of our 5 first-team All-America LBs in the decade Chris Borland was dominant, and now he's #BTNAllDecade 💪 #OnWisconsin, By Wisconsin Football
Mount Badger: Four greatest Wisconsin products in NFL history
49ers linebacker Chris Borland retiring at 24 due to long-term health concerns
Neil Cornrich & NC Sports, LLC: July 2018