Chris Borland Retires from NFL at Age 24: Latest Details, Comments and Reaction, News, Scores, Highlights, Stats, and Rumors
San Francisco 49ers Chris Borland retires over repeated head trauma
Chris Borland: From NFL Star to Science Champion
San Francisco 49ers Chris Borland retires over repeated head trauma
Chris Borland On His Decision To Retire - ESPN Video
OFFSEASON NOTES: The focus right now is Pablo, Pablo, Pablo Lincecum to go back into rotation Susac takes over backup job - Giants Extra
How former San Francisco 49ers Chris Borland's retirement could change NFL forever - ESPN
San Francisco 49ers' Chris Borland retiring from NFL
Chris Borland retires from 49ers after one year due to fears over head trauma, NFL
San Francisco 49ers LB Chris Borland to retire due to safety concerns - Sports Illustrated
Nick Bosa deletes pro-Trump and anti-Kaepernick tweets because he might end up in San Francisco
Former Badgers NFL linebacker retires to become mental health advocate