Antonio Pena had a good career as a professional wrestler in Mexico where he performed in the mid-card and used multiple personas.  His in-ring work was only a fraction of what he would become as he would have a genius like gift for showmanship and storylines and he would take over the booking role for EMLL.  Pena was a large part of the rebranding to CMLL and the booking of lighter weight wrestlers to the main event scene.  Arguably, the modern Lucha Libre that most of us seen came because Pena gave these stars that forum.