How four great 49ers went from draft question marks to the NFL's All-Decade team - The Athletic
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
Retired 49ers LB Patrick Willis is now just another Silicon Valley tech geek
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
Patrick Willis: News, Stats, Bio & More - NBC Sports
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
Jim Harbaugh won't return as San Francisco 49ers head coach - The Boston Globe
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
Chris Borland retires after one season - NBC Sports