Javier Hernández Padilla is a semi-retired Mexican professional wrestler best known under the ring name Américo Rocca. Hernández also worked as the enmascarado (masked) Ponzoña from 1990 until 1994, and as Ninja Samurai for a brief time in 1994. Hernández is a former holder of the Mexican National Lightweight Championship and a three-time holder of both the Mexican National Welterweight Championship and the NWA World Welterweight Championship all promoted by the professional wrestling promotion Empresa Mexicana de Lucha Libre (EMLL).