MS-1

On January 12, 2012, Fuentes died in a car accident in Huamantla, Tlaxcala.

In the early 1990s Los Infernales reformed, reuniting MS-1, Satánico and Pirata Morgan. The trio participated in the tournament to crown the first CMLL World Trios Champions. Los Infernales won the tournament, defeating Los Brazo in the finals to become the first CMLL World Trios Champions on November 22, 1991. Former Infernales member Masakre had formed his own group, Los Intocables (the Untouchables) consisting of himself, Pierroth Jr. and Jaque Mate (Checkmate). Los Intocables were immediately paired with Los Infernales to create a Rudos vs. Rudos storyline, playing off both the championship chase and the history between the two groups. On March 22, 1992 Los Intocables won the CMLL World Trios Title, however Los Infernales got the final victory in their feud as they defeated Los Intocables for the championship on September 20, 1992. After the storyline with Los Intocables ended Los Infernales renewed their rivalry with Los Brazo, facing off in several main events that drew sell-out crowds all over Mexico. On April 6, 1993 Los Brazo won the CMLL World Trios Title from Los Infernales; a victory that only helped increase the intensity of the rivalry. The Infernales / Brazos feud did not so much with a conclusive victory for either side but rather slowed down and then stopped when Los Infernales split up in the mid 1990s. Both Satánico and Pirata Morgan left CMLL for periods of time to work for Asistencia Asesoría y Administración, CMLL's main rival and in 1996 MS-1 left CMLL for good.

After leaving CMLL Fuentes became a wrestling promoter, promoting shows in smaller arenas around Naucalpan, while also forming a new Los Infernales trio on the Mexican Independent circuit, teaming with his son who wrestled as "MS-1 Jr." and "MS-2", who was often played by various local wrestlers and not one specific person. By the end of the 1990s MS-1 quietly retired from wrestling.

On March 20, 1987 MS-1 defeated his longtime rival Rayo de Jalisco Jr. to once again win the NWA World Light Heavyweight Championship. Six days later MS-1 and Masakre teamed up to defeat Los Hermanos Dinamita (Cien Caras and Máscara Año 2000) to win the Mexican National Tag Team Championship, starting a feud with Los Hermanos Dinamita. The feud with Los Hermanos Dinamita saw Cien Caras defeat MS-1 for the NWA World Light Heavyweight Championship on June 24, 1987, ending MS-1's reign after just three months. MS-1 and Masakre defended the Mexican National Tag Team titles for just over a year until losing them to Atlantis and Ángel Azteca on April 6, 1988. El Satánico left Los Infernales as he began focusing more on singles matches and MS-1 and Masakre began arguing, then fighting after the two of them lost the tag team titles thus ending Los Infernales. MS-1 and Masakre faced off in a series of matches, culminating with a headline Luchas de Apuestas match at Arena Mexico that MS-1 won.

In the early 1980s the |trios concept became very popular in Mexico, spearheaded by the trio called Los Misioneros de Muerte (the Missionaries of death) who worked for a rival promotion. EMLL decided to create a trio of villains, or Rudos as they're called in Lucha Libre, to capitalize on the popularity. MS-1 was teamed up with El Satánico and Espectro Jr. to form Los Infernales (the Infernals). Espectro Jr. was forced to retire due to injuries not long after Los Infernales were formed; he was replaced with Pirata Morgan and the trio of MS-1, Satánico and Pirata Morgan quickly became one of the most successful Trios of its time. In addition to success as a team, MS-1 also saw singles success as he won the NWA World Light Heavyweight Championship from Ringo Mendoza on February 12, 1985 only to turn around and lose it to Rayo de Jalisco Jr. on June 21 that same year. In March 1985 Los Infernales participated in a tournament to determine the first Mexican National Trios Champions; Los Infernales defeated three teams to qualify for the finals. In the finals Los Infernales defeated Los Brazos ("the Arms"; El Brazo, Brazo de Oro and Brazo de Plata) to become the first Mexican National Trios champions. That match was just the first match in a long running Inferlanes/Brazos storyline that would run off and on over the next decade. Los Brazos won the initial feud when they defeated Los Infernales for the Mexican Nations Trios Title on December 8, 1985. In October, 1986 Pirata Morgan left the group to form a new group called "Los Bucaneros", in his place Los Infernales recruited Masakre to be their third member.

Reyna made his professional wrestling debut on July 12, 1978 at the age of 21, wrestling under his real name Pablo Fuentes. Within a year the rookie began working for Empresa Mexicana de Lucha Libre (EMLL), Mexico's largest professional wrestling promotion. EMLL decided that Fuentes needed a different ring persona and created the character "MS-1" for him; MS refers to a Mexican Antiterrorist corps where MS-1 is the highest rank. Fuentes was teamed up with another wrestler who was given the name "MS-2", both of them adopted identical masks and outfits, only differentiated by the "1" and "2" on their tights. In March 1979 MS-1 and MS-2 made their in-ring debut. while Fuentes showed great in-ring skill, MS-2 did not seem to progress as fast as Fuentes and was phased out in less than a year allowing "MS-1" to work as a singles wrestler. In his first scripted feud MS-1 faced off against Rayo de Jalisco Jr. in a series of heated matches, culminating in a Luchas de Apuestas match, a "bet match" where each competitor wagered his mask. On July 2, 1982 MS-1 lost the match and was forced to unmask per Lucha Libre traditions; the loss of the mask did not hinder his popularity any, partly because the mask was described as "very ugly" and partly because Fuentes was a good looking man. After the storyline with Rayo de Jalisco Jr. ended MS-1 was paired up with Sangre Chicana in a very heated feud that often saw one or both men end the match with blood all over their face. The end of the storyline between MS-1 and Sangre Chicana saw Chicana defeat MS-1 in a Luchas de Apuestas match, after which MS-1 had all his hair shaved off.

Pablo Fuentes Reyna (December 31, 1956 – January 12, 2012) was a Mexican luchador (Spanish for professional wrestler) best known under the ring name MS-1 (MS Uno). As MS-1, Fuentes was a founding member of the wrestling group called Los Infernales (the Infernals) and achieved most of his success as part of the group, including being the first Mexican National Trios Champions and the first CMLL World Trios Champions. Fuentes' son is also a professional wrestler working as MS-1 Jr. or MS-Jr.