Javier Hernández made his professional wrestling debut in 1975, using the ring name Xavier "Américo" Rocca, later shortened to just "Américo Rocca". JUst over two years after his debut Rocca defeated Flama Azul to win the Mexican National Lightweight Championship, a title he would hold for 82 days before losing it back to Flama Azul. On February 2, 1978 Rocca won the Mexican National Welterweight Championship from Kung Fu, holding it for 435 dayws before losing it to Lizmark. The following year, on April 30, 1970 Rocca won the NWA World Welterweight Championship from Mano Negra. Rocca made several successful titl defenses in the following 264 days before losing the title to Kato Kung Lee on January 19, 1980. Just under two months later he won the Mexican Welterweight title once more, defeating Lizmark to regain the title. His second Mexican Welterweight title run lasted 217 days before he lost the belt to Franco Columbo on November 1, 1980 On July 18, 1982 Américo Rocca defeated La Fiera to win his second NWA World Welterweight Championship, a title he would hold for 558 days before losing it to Mocho Cota. On March 29, 1985 Rocca won his third and final Mexican National Welterweight Championship by beating El Talisman for the championship. His final title reign lasted 156 days before he lost it to El Dandy. On February 11, 1986 Rocca won his last major title when he gained a measure of revenge against El Dandy by defeating him for the NWA World Welterweight Championship. His last title reign would also be his longest, 606 days in total before Solar II defeated him for the belt on June 30, 1988. In 1990 Rocca adopted a new ring persona, Ponzoña (Spanish for "Poison"), a character used by Antonio Peña's father in the 1960s and brought back with Peña's permission. Hernández worked as the masked Ponzoña until 1994, after which he resumed working as Américo Rocca on the Mexican independent circuit. In recent years Hernández sons have begun wrestling as well under the names Américo Rocca, Jr. and Xavier Rocca.
^ abcdefghijklmEnciclopedia staff (November 2008). "Grandes Figuras de la Lucha Libre". Américo Rocca (in Spanish) (Portales, Mexico). p. 33. 17.|accessdate= requires |url= (help)
^ abRoyal Duncan & Gary Will (2000). "Mexico: National Lightweight Title". Wrestling Title Histories. Archeus Communications. p. 393. ISBN0-9698161-5-4.
^ abcdRoyal Duncan & Gary Will (2000). "MEXICO: National Welterweight Title". Wrestling Title Histories. Archeus Communications. p. 392. ISBN0-9698161-5-4.|accessdate= requires |url= (help)
^ abcdRoyal Duncan & Gary Will (2006). "MEXICO EMLL NWA Welterweight Heavyweight Title". Wrestling Title Histories (4th ed.). Archeus Communications. p. 390. ISBN0-9698161-5-4.
^Enciclopedia staff (September 2007). "Enciclopedia de las Mascaras". Ponzoña (in Spanish) (Mexico City, Mexico). p. 57. Tomo III.|accessdate= requires |url= (help)
^Madigan, Dan (2007). "A family affair". Mondo Lucha Libre: the bizarre and honorable world of wild Mexican wrestling. HarperColins Publisher. pp. 128–132. ISBN978-0-06-085583-3.|accessdate= requires |url= (help)
^Lucha 2000 Staff (December 20, 2004). "Los Reyes de Mexico: La Historia de Los Campeonatos Nacionales". Lucha 2000 (in Spanish). Especial 21.|accessdate= requires |url= (help)