49ers Patrick Willis Retiring
San Francisco 49ers: Who Will Replace Patrick Willis and Chris Borland?, News, Scores, Highlights, Stats, and Rumors
Patrick Willis retiring from 49ers after injury-shortened season, NFL
Patrick Willis Explains Decision to Retire from NFL
Patrick Willis still thriving after early 49ers retirement
Patrick Willis, ex-teammates praise Joe Staley upon 49ers retirement – Daily Democrat
Patrick Willis of San Francisco 49ers retires - ESPN
Patrick Willis Says Change 'Must' Happen After 49ers Loss
San Francisco 49ers LB Patrick Willis expected to retire
49ers LB Patrick Willis to retire - ABC13 Houston
49ers Linebacker Patrick Willis, 30, Retiring
NFL Free Agency: Patrick Willis, Justin Smith expected to retire; Colin Kaepernick on the trade block? - Field Gulls
Patrick Willis: 49ers rift with Jim Harbaugh didn't cause retirement
Patrick Willis, American Football Wiki