San Francisco 49ers linebacker Patrick Willis to retire
Report: Former Ole Miss great Patrick Willis to retire
Why would an NFL star retire when he can still play? Patrick
49ers LB Patrick Willis retiring after injury-shortened season
Patrick Willis is 'no-brainer' Hall of Famer, DeMeco Ryans
Patrick Willis, American Football Wiki
NFL notebook: 49ers veterans Smith, Willis pondering retirement
Will former 49ers linebacker Patrick Willis ever be inducted in
Patrick Wilson Announces Retirement
Linebacker Patrick Willis To Announce Retirement
Patrick Willis, retired San Francisco 49ers all-Pro linebacker
49ers' Patrick Willis isn't in the Hall of Fame and is too busy to
Patrick Willis Says Change 'Must' Happen After 49ers Loss