His days encompass a total of two title runs each lasting multiple years .
Bruno Sammartino 's run of 4,040 days wearing the league championship belt stems back to the days of the WWF , before the league officially changed its name .
Bruno Sammartino 's days encompass a total of two title runs each lasting multiple years .
Bruno Sammartino 's run of 4,040 days wearing the league championship belt stems back to the days of the WWF , before the league officially changed its name .