Chris Borland finding life after football isn't easy
Chris Borland - Wikipedia
Chris Borland finding life after football isn't easy
NFL Players Retiring Early a Trend
24-year-old NFL player quits over concussion worries
49ers Linebacker Chris Borland to Retire for Safety Concerns
Chris Borland on retirement: The best decision for me - CBS News
NFL star Chris Borland retiring at 24
Are parents rethinking youth football after Chris Borland's retirement?
Chris Borland retires: The NFL's troubling CTE comments - Sports Illustrated
San Francisco 49ers Chris Borland Retiring at 24, News
node:title] San Francisco 49ers Rookie Chris Borland Retires at 24 For Concussion Concerns - Men's Journal
Chris Borland - Wikipedia
49ers LB Chris Borland won't be last to retire early for safety reasons - Sports Illustrated
Chris Borland, San Francisco 49ers linebacker, retiring due to head trauma concerns - Newsday