Patrick Willis Explains Decision to Retire from NFL
Patrick Willis, American Football Wiki
Patrick Willis considering comeback with San Francisco 49ers
San Francisco 49ers: Patrick Willis credits Bruceton, Tennessee for NFL success
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Patrick Willis working full-time at tech startup in Silicon Valley
Retired 49ers LB Patrick Willis is now just another Silicon Valley tech geek
49ers Alumnus Patrick Willis to Be Inducted into Bay Area Sports Hall of Fame
San Francisco 49ers linebacker Patrick Willis will retire
49ers Patrick Willis Officially Announcing Retirement - CBS Sacramento
Patrick Willis' Shock Retirement Marks Official End of Jim Harbaugh-Era 49ers, News, Scores, Highlights, Stats, and Rumors