Mexico Premier Wrestling Federation were the first promotion to emerge and challenge OLLIE for the status of lucha libre's biggest company. In a famous moment in Mexican wrestling history, they were formed after four of OLLIE's biggest stars of the time - El Barbaro, Mephisto, El Fantasma and El Águila Americana - walked out after a contract dispute, and their star power allowed the company to survive and eventually thrive against their more powerful rivals.