Report: 49ers' Patrick Willis planning to retire
San Francisco 49ers: Catching up with Hall of Fame candidate Patrick Willis - Niners Nation
It's Time Former 49ers' Star Patrick Willis Moves Forward to a Canton Conversation - Talk Of Fame
49ers' Fred Warner earns NFC Defensive Player of the Week honors – NBC Sports Bay Area & California
49ers announce Patrick Willis is retiring - NBC Sports
2019 College Football Hall of Fame Profile: Patrick Willis - National Football Foundation
Patrick Willis is 'no-brainer' Hall of Famer, DeMeco Ryans believes – NBC Sports Bay Area & California
San Francisco 49ers linebacker Chris Borland retires over head injury concerns - ESPN
San Francisco 49ers: Why Patrick Willis and NaVorro Bowman Are a Special Tandem, News, Scores, Highlights, Stats, and Rumors
Patrick Willis Through the Years