Chris Borland Retires from NFL at Age 24: Latest Details, Comments
NFL rookie Chris Borland retires over head trauma concerns
Former Badgers football player Chris Borland to get award for
San Francisco 49ers' Chris Borland Retires at 24 Over Concussion
Chris Borland Announces NFL Retirement From San Francisco 49ers
Retiring 49er Chris Borland to pay back NFL signing bonus - Sports
Borges: NFL takes big hit with Chris Borland”s retirement – Boston
Concussion Concern: LB Retires After One NFL Season
Chris Borland Archives - Jeffrey Sterling, MD
Why the NFL needs to worry about Chris Borland
UW football: Borland critical of Badgers, football in new documentary
Another young NFL player calls it quits to protect future health
Hard Truth On Wisconsin Magazine