Patrick Willis' Shock Retirement Marks Official End of Jim Harbaugh-Era 49ers, News, Scores, Highlights, Stats, and Rumors
Fred Warner won't forget Joe Staley's 49ers influence any time soon – NBC Sports Bay Area & California
Chris Borland retires after one season - NBC Sports
Patrick Willis still thriving after early 49ers retirement
49ers LB Patrick Willis retiring
Bleacher Report - San Francisco 49ers make it official: Patrick Willis will retire. Details
49ers' Nick Bosa describes J.J. Watt as 'one-of-one' defensive lineman – NBC Sports Bay Area & California
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
49ers News: Still not over Patrick Willis getting snubbed again - Niners Nation
49ers' Patrick Willis retires 'happy' – The Mercury News
Patrick Wilson Announces Retirement