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
Patrick Willis closes door on return, discusses foot issues as reason for retirement - Niners Nation
Top Takeaways From The Cardinals' 2021 Offseason
Chris Borland retires from NFL at just 24 years old, makes his own sense of head injuries – New York Daily News
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
49ers Patrick Willis retiring after injury-shortened season – The Denver Post
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News
Linebacker Patrick Willis Retires - The Source
Patrick Willis retiring from 49ers after injury-shortened season, NFL
San Francisco 49ers linebacker Chris Borland retires over head injury concerns - ESPN
49ers LB Patrick Willis retiring after injury-shortened season – New York Daily News