Patrick Willis Explains Decision to Retire from NFL
Should a short career dim the Hall of Fame chances of Patrick
49ers' Patrick Willis retires after injury-shortened season – The
49ers LB Patrick Willis retiring after injury-shortened season
Patrick Willis retiring from 49ers after injury-shortened season
NFL preseason: How to watch today's Los Angeles Chargers vs. San
Patrick Willis Says Change 'Must' Happen After 49ers Loss
49ers' Patrick Willis retires 'happy' – The Mercury News
Luke Kuechly's NFL retirement shouldn't be considered early
Patrick Willis Explains Decision to Retire from NFL
49ers LB Patrick Willis retiring after injury-shortened season
49ers' Patrick Willis retires after injury-shortened season – The
49ers LB Patrick Willis retiring after injury-shortened season
Bleacher Report - San Francisco 49ers make it official: Patrick
Patrick Willis retiring from 49ers after injury-shortened season