Chris Borland, ILB, Wisconsin. NFL Draft. In: cbssports.com. CBS Sports, abgerufen am 18. März 2015 (englisch): „Christopher "Chris" Borland played mostly offense in high school and went overlooked by most Big Ten programs, but he grew up a Wisconsin fan and impressed the coaching staff enough at a workout to earn a scholarship.“
nfl.com
Dan Hanzus: Chris Borland placed on San Francisco 49ers' I.R. In: nfl.com. National Football League (NFL), 20. Dezember 2014, abgerufen am 18. März 2015 (englisch): „Chris Borland made an instant impact when given the opportunity this season, earning buzz as a Defensive Rookie of the Year candidate. His rookie campaign is now over.“
Dan Hanzus: San Francisco 49ers' Chris Borland retiring from NFL. Another prominent NFL player is walking away from the game in his prime. In: nfl.com. National Football League (NFL), 16. März 2015, abgerufen am 18. März 2015 (englisch): „San Francisco 49ers linebacker Chris Borland told ESPN's Outside The Lines on Monday that he is retiring from the NFL due to concerns about the long-term health effects of head trauma.“
pro-football-reference.com
Chris Borland Career Game Log. In: pro-football-reference.com. Pro-Football-Reference, abgerufen am 18. März 2015 (englisch).
Matt Barrows: Fearing brain injury, 49ers’ Chris Borland retires after one year. In: sacbee.com. The Sacramento Bee, 16. März 2015, abgerufen am 18. März 2015 (englisch): „One week after Patrick Willis surprised the NFL with his decision to retire, his would-be replacement at inside linebacker has decided to do the same.“
