Packers To Retire Favre's No. 4 At Season Opener, Sept. 8
Brett Favre will have No. 4 retired at Lambeau Field, Football
Cleveland: Mississippi Native Brett Favre Known for No. 4 - HottyToddy
Brett Favre looks back on time with Green Bay Packers, more - Sports Illustrated
Ranking All 4 Green Bay Packers Super Bowl-Winning Teams
Packers' Quarterback Favre to Retire From N.F.L. - The New York Times
Favre headed to Packers HOF in 2015
History appears to repeat itself for Packers quarterbacks
Packers: Brett Favre reacts to Aaron Rodgers comments on radio show