49ers LB Patrick Willis retiring after injury-shortened season
49ers Patrick Willis retiring after injury-shortened season – The
State Your Case: Patrick Willis' days were short but his impact
49ers LB Patrick Willis retiring after injury-shortened season
Hanging it up: More NFL players quitting in prime of their careers
Sources: Patrick Willis to have season-ending surgery
San Francisco 49ers linebacker Patrick Willis out for season with
Patrick Willis Explains Decision to Retire from NFL
49ers LB Patrick Willis retiring after injury-shortened season
The Life And Career Of Patrick Willis (Story)
Patrick Willis retiring from 49ers after injury-shortened season
NFL: Players call it quits in prime of careers
Report: 49ers expect Patrick Willis to retire
49ers linebacker Willis requires season-ending surgery on injured