Chris Borland talks 'early' retirement in UW-Madison guest lecture
An NFL Rookie Leaves the Game, On the Media
Chris Borland retires after one season - NBC Sports
49ers hit hard after unexpected offseason departures - The Boston Globe
Patrick's Legacy - Niners Nation
San Francisco 49ers Chris Borland retires over repeated head trauma
Former Badgers linebacker Chris Borland, brothers to participate in Pat's Run for After the Impact Fund
Chris Borland, the 'most dangerous man in football,' traded an NFL career for an internship over CTE, Sports
He Gave Up MILLIONS…The Story of CHRIS BORLAND
Ex-49ers LB Chris Borland: Early retirement could become a trend
Chris Borland's retirement: Is an NFL player's brain really more important than his feet?