Patrick Willis retiring from 49ers after injury-shortened season, NFL
Report: Patrick Willis headed to IR - NBC Sports
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
San Francisco 49ers linebacker Patrick Willis out for season with toe injury
Patrick Willis closes door on return, discusses foot issues as reason for retirement - Niners Nation
Did NFL legend Patrick Willis just hint at a comeback?
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News