His main career lasted between 1967 through to 1988 .
His main career never managed to win the converted WWE Championship despite main event matches against stars such as Sammartino , Pedro Morales and Bob Backlund .
His main career lasted between 1967 through to 1988 , but never managed to win the converted WWE Championship despite main event matches against stars such as Sammartino , Pedro Morales and Bob Backlund .