Saul Armendariz (May 20, 1970) is an American born-Mexican luchador, or professional wrestler, who works as an exotico for Asistencia Asesoría y Administración (AAA) and several independent promotions all over the world under the ring name Cassandro. He is the current NWA World Welterweight Champion and a former UWA World Lightweight Champion. In 2009, Armendariz signed a contract with American promotion Total Nonstop Action Wrestling (TNA), but was released before making his official debut.