José Delgado Saldaña is a Mexican professional wrestler best known by his ring name Mr. Águila in Mexican wrestling promotions CMLL and AAA. Outside Mexico, Saldaña is best known for his work as Essa Ríos in the WWF.

Promociones Antonio Peña, S.A. de C.V. d/b/a Lucha Libre AAA Worldwide (Commonly referred to as simply AAA is a Mexican Lucha Libre promotion based in Mexico City, Mexico. It was founded in 1992, when Antonio Peña broke away from Consejo Mundial de Lucha Libre to set up his own promotion to have more creative freedom.