 During the middle of the 2006 NFL season, Havner was signed to the practice squad of the Green Bay Packers, but was released prior to the start of the 2008 season.The Packers re-signed him to their practice squad on October 15 and he was added to the active roster on December 4 after it was reported that the Chicago Bears were going to sign him to their active roster.During the 2009 offseason, Havner attempted to make the transition from linebacker to tight end, which was successful as he made the 2009 opening roster.