Patrick Willis injury: San Francisco 49ers' linebacker will have season-ending toe surgery, placed on injured reserve - Sports Illustrated
Patrick Willis, ex-teammates praise Joe Staley upon 49ers retirement – Daily Democrat
49ers announce Patrick Willis is retiring - NBC Sports
Patrick willis hi-res stock photography and images - Alamy
Patrick Willis: We trust 'crazy' Harbaugh on QB choice
9. Patrick Willis - Not in Hall of Fame
Patrick Willis - Wikipedia
The Life And Career Of Patrick Willis (Story)
MMBM: Patrick Willis is a quitter not a hitter, good riddance
Battle of the Intros: Joe Staley and Patrick Willis Rate Each Other
Patrick Willis Through the Years
Patrick Willis and John Taylor Get Inducted into the 49ers Hall of Fame