Patrick Willis still thriving after early 49ers retirement
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49ers Hall of Fame: Patrick Willis, John Taylor to be inducted
Willis Q&A: Talking Seahawks, Bowman and Coach Harbaugh
A Fan's Perspective on What Patrick Willis Means to the San Francisco 49ers, News, Scores, Highlights, Stats, and Rumors
NFL: Players call it quits in prime of careers
Patrick Willis retiring from 49ers after injury-shortened season, NFL
Patrick Willis, ex-teammates praise Joe Staley upon 49ers retirement – Daily Democrat
Aldon Smith reinstated, Patrick Willis on season-ending IR for San Francisco 49ers
Patrick Willis Injury: 49ers lose linebacker for season - Big Blue View
Linebacker Patrick Willis is ready to retire, even though he's only 30 – The Denver Post
49ers LB Patrick Willis to retire - 6abc Philadelphia