Patrick Willis, American Football Wiki
Patrick Willis spending retirement working for Silicon Valley tech startup
Patrick Willis still thriving after early 49ers retirement
The Life And Career Of Patrick Willis (Story)
49ers great Patrick Willis starts surprising new career in retirement
Patrick Willis Explains Decision to Retire from NFL
Patrick Willis Explains Decision to Retire from NFL
49ers Linebacker Patrick Willis, 30, Retiring
Patrick Willis to retire after 8 seasons with San Francisco 49ers - Niners Nation
Patrick Willis of San Francisco 49ers to announce retirement - ESPN