Metálico

Professional wrestling career Munguia trained under Toño Aguirre and Tigre de Oro before making his debut in 1994 under the ring name "Tigre Metálico" ("Metallic Tiger"), as an homage to his teacher Tigre de Oro. Over the years Tigre Metalico worked on the Mexican independent circuit and did a stint as a regular for International Wrestling Revolution Group (IWRG). He began teaming with Tigre Blanco on a regular basis and at times even joined up with Rey Tigre to form the Trio Los Tigres del Ring ("The Tigers of the Ring"). Metálico was one of the select few CMLL wrestlers to go on a tour of Spain in 2008. Metálico suffered a leg injury during a match, where he ended landing on one of the ringside seats during a miscalculated move. The injury required surgery and several months away from the ring to recuperate. In late 2010 Metálico teamed up with Starman to compete in a tournament where the winners would get a match for the CMLL Arena Coliseo Tag Team Championship, but the team was defeated by Los Cancerberos del Infierno (Cancerbero and Raziel) in the opening round. Metálico suffered a second, serious leg injury in July 2012, working opposite Bobby Zavala when he landed wrong during the execution of a move and broke his leg during the match. He had to be taken to the hospital where his leg was reset.

He would not return to in-ring action until September, 2012. In the spring of 2013 Metálico became involved in a storyline feud against young rudo El Hijo del Signo, that saw Hijo del Signo cheat more than once to defeat the veteran Metálico. The two found themselves on opposites sides of a match at the Arena Coliseo 70th Anniversary Show on April 7, 2013 with Metálico teaming up with Hombre Bala Jr. and Super Halcón Jr. while El Hijo del Signo teamed up with Nosferatu and Taurus. The storyline between Hijo del Signo and Metálico took center stage during the match as most of the action centered around the two. In the second fall Hijo del Signo pulled Metálico's mask off, hoping to use the distraction to gain a pinfall, but instead he was disqualified when the referee saw the blatant rulebreaking by El Hijo del Signo. The storyline between the two was featured on a number of other shows throughout March and April, including a one-on-one match on CMLL's Super Viernes show, their main weekly show and an indicator that CMLL is escalating the storyline between the two. At the Arena Mexico 57th Anniversary Show Hijo del Signo teamed up with Los Guerreros Tuareg (Arkangel de la Muerte and Skándalo) to defeat Metálico, Sensei and Soberano Jr. with El Hijo del Signo scoring the deciding pinfall on Metálico.

The storyline with Hijo del Signo was dropped over the summer of 2013 with no explanation of why it was ended. On March 24, 2014, Metálico was one of 16 men competing for a spot in the 2014 En Busca de un Ídolo ("In Search of an Idol") tournament. During the torneo cibernetico elimination match Oro Jr. dove onto Metálico and landed poorly, hurting Metálico in the process. When Metálico returned from his injury a month later he teamed up with Oro Jr., during which he began to argue with Oro Jr. after a move went wrong once again. The following week Metálico turned Rudo for the first time in his career as he attacked Oro Jr. at the end of a match against Canelo Casas, Disturbio and El Rebelde. After the match Metálico stated that he blamed Oro Jr. for the shoulder injury that kept him out of the ring. In subsequent weeks the two faced off on multiple occasions, often with Metálico stealing Oro Jr.'s mask. On August 4, following another trios match with Oro and Metálico CMLL announced that the two would face off in a Lucha de Apuestas ("Bet match") on August 10, where both wrestlers will bet their wrestling masks on the outcome of the match. On August 10, Metálico was defeated by Oro Jr. in the Lucha de Apuestas match, forcing him to unmask and reveal his real name, Salvador Munguia and how long he had been a wrestler, 22 years.

Following his mask loss Metálico adopted a new ring persona, taking the nickname El Pedro Infante de Lucha Libre (The Pedro Infante of wrestling), inspired by the Mexican movie legend of the 1940s and 50s. Metálico grew a thin mustache, styled his hair like Infante and began singing and dancing in the ring prior to his matches, in the style of Pedro Infante. Over the summer of 2015 Metálico started a quick feud with the tecnico Leono that led to a Lucha de Apuestas between the two being announced, only to be quietly dropped a few days later. Instead Metálico shifted his attention to Omar Brunetti, feuding with him as part of CMLL's weekly shows on Guadalajara, Jalisco. The storyline led to the two facing off in a Lucha de Apuestas match on September 15 which Metálico won, forcing his opponent to have his hair shaved off as a result. Metálico lost a career vs career match to Virus on May 31, 2019, as part of CMLL's Juicio Final show, it was hinted afterward that he may become a referee.