Patrick Willis still holds foster parents dear
Patrick Willis Explains Decision to Retire from NFL
Patrick Willis Explains Decision to Retire from NFL
Bleacher Report - San Francisco 49ers make it official: Patrick Willis will retire. Details
49ers' Patrick Willis isn't in the Hall of Fame and is too busy to care - ESPN - San Francisco 49ers Blog- ESPN
49ers LB Patrick Willis to retire - ABC7 Chicago
Patrick Willis Explains Decision to Retire from NFL
49ers Patrick Willis Retiring
49ers' Patrick Willis retires 'happy' – The Mercury News
49ers' Patrick Willis retires 'happy' – The Mercury News
49ers great Patrick Willis starts surprising new career in retirement
Where four 49ers rank on Pro Football Focus' 101 best players of 2010s – NBC Sports Bay Area & California