Linebacker Patrick Willis is ready to retire, even though he's only 30
Chris Borland retires from 49ers after one year due to fears over
San Francisco 49ers - Imagine trying to block this guy 😳 TBT
Patrick Willis, ex-teammates praise Joe Staley upon 49ers
The NFL as it is Known is Not Sustainable - Canal Street Chronicles
Patrick Willis Retired in His Prime, But Where is He Now? - FanBuzz
Patrick Willis Announces His Retirement, Fulfills His Legacy - stack
Got a debate going on right now about who to take if you had to
Patrick Willis - Wikipedia
Patrick Willis retirement came at right time for post-career pursuits
Ex-49ers star Patrick Willis reflects on making team's hall of fame
Tykes on Instagram: “Patrick Willis San Francisco 49ers Tyke