Giants tender contracts to all six arb-eligible players - Giants Extra
San Francisco 49ers LB Chris Borland to retire due to safety concerns - Sports Illustrated
Chris Borland - San Francisco 49ers Linebacker - ESPN
Trade History: An abundance of deal lead to the 49ers success in the 1980s — Inside The Hashes
WINTER MEETINGS NOTES: Giants chase Shields; Panda's move was no surprise; #ThreeBelt; Giants add two minor leaguers - Giants Extra
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Game of Pain: Pushing for research on CBD's benefits to NFL players - The Denver Post
Former 49er Chris Borland: Football can never be made 'safe' - ESPN - San Francisco 49ers Blog- ESPN
49ers' Chris Borland Retires from NFL at Age 24
Chris Borland Retires from NFL at Age 24: Latest Details, Comments and Reaction, News, Scores, Highlights, Stats, and Rumors
How former San Francisco 49ers Chris Borland's retirement could change NFL forever - ESPN
49ers LB Chris Borland won't be last to retire early for safety reasons - Sports Illustrated
Chris Borland: From NFL Star to Science Champion