Niebla Roja

Ángel de Plata (2008–2012)

Sergio's feud with his brother in Durango was so well received by the crowd that the siblings received an invitation to train at Consejo Mundial de Lucha Libre's (CMLL) wrestling school in Guadalajara, Jalisco. When he went to Guadalajara to train under Gran Cochisse and El Satánico, he changed his ring character to Ángel de Plata, complementing his brother's ring character.^[2] The duo made their CMLL debut on July 4, 2008, wrestling as a team dubbed Los Angeles Celestiales ("The Celestial Angels").^[2] The duo was made into a trio when they were joined by Ángel Azteca Jr., who used a similar "Angel inspired" ring character.^[7] On April 7, 2009, Ángel de Plata participated in a 10-man torneo cibernetico for the vacant CMLL World Super Lightweight Championship involving Ángel Azteca Jr., Rey Cometa, Pegasso, Tiger Kid, Pólvora, Inquisidor, Súper Comando, Angel de Oro and Máscara Dorada, who won the title.^[8] In the fall of 2009, Ángel de Plata participated in the Gran Alternativa tournament, where an experienced wrestler teams up with a newcomer. He and Héctor Garza defeated Averno and Pólvora in the first round before losing to eventual tournament winners La Ola Amarilla ("The Yellow Wave"; Naito and Okumura).^[9]

Later that year, Los Ángeles Celestiales participated in a tournament to crown new Mexican National Trios Champions, but lost in the first round to Los Cancerberos del Infierno (Virus, Pólvora and Euforia).^[7] Following the tournament loss, Los Ángeles Celestiales and Los Cancerberos del Infierno developed a rivalry and fought on various CMLL shows, including the Friday night CMLL Super Viernes show.^[10] On the January 15, 2010 edition of Super Viernes, Ángel de Plata lost a lightning match to Los Cancerberos del Infierno member Raziel.^[11] Ángel de Plata was one of 12 men who put their mask on the line as part of a 12-man steel cage match in the main event of the 2010 Infierno en el Ring. During the match, he tricked his brother Ángel de Oro in order to escape the match. In the end, Ángel de Oro defeated Fabián el Gitano in the Lucha de Apuestas (bet match) portion of the match to unmask him. Following the match, Ángel de Plata returned to the ring to celebrate with his brother, showing that there were no hard feelings over Ángel de Plata's tactics during the match.^[12]

Niebla Roja and Los Hermanos Chávez (2012–2020)

On March 30, 2012, Ángel de Plata underwent a complete character overhaul, debuting a new mask and attire and switching his ring name to Niebla Roja ("Red Mist"), turning rudo in the process.^[13] On July 6, Roja was named the newest member of Último Guerrero's Los Guerreros del Infierno stable.^[14] Roja competed in CMLL's inaugural En Busca de un Ídolo ("In search of an Idol") tournament, but did not qualify for the semi-final.^[15] He was forced to team up with Dragón Rojo Jr. from Los Revolucionarios del Terror for the 2013 Torneo Nacional de Parejas Increibles ("National Incredible Pairs Tournament"), where rivals would team up for a tag team tournament. They managed to defeat the team of Rush and El Terrible in the first round and Blue Panther and Rey Escorpión in the second round, but lost in the semi-finals to Guerrero and Atlantis.^[16][17] On March 28, 2014, Roja won his first title, when he, Euforia and Último Guerrero defeated Los Estetas del Aire (Máscara Dorada, Místico and Valiente) for the CMLL World Trios Championship.^[18] They lost the title to Sky Team (Místico, Valiente and Volador Jr.) on February 13, 2015.^[19]

In March 2017, CMLL began a storyline where Niebla Roja started having problems with his fellow Los Guerreros Laguneros teammates, initially by accidentally causing them to lose matches due to miscommunication between Roja and Euforia and Gran Guerrero.^[20] As the storyline progressed, Roja refused to participate in double or triple teaming an opponent, a common part of the rudo antics from Los Guerreros.^[21] On May 19, Roja's tecnico turn was completed as he kicked Los Guerreros leader Último Guerrero in the face during a match. Afterwards, Último Guerrero and Gran Guerrero beat Roja up, tore his mask off and demanded that he come up with a new mask instead of wearing the Último Guerrero inspired mask. During the attack, he was aided by his brother Ángel de Oro.^[22][23] On June 10, Roja won a 10-man torneo cibernetico elimination match to win the vacant CMLL World Light Heavyweight Championship.^[24]

The long running storyline with Los Guerreros, particularly with Gran Guerrero, culminated in the main event of CMLL's 84th Anniversary Show on September 16, where both wrestlers put their masks on the line in a Lucha de Apuestas match. Niebla Roja was defeated by Guerrero, forcing him to unmask afterwards and state his legal name: Sergio Raymundo Chávez Velasco.^[1] In the spring of 2018, Roja supported his brother in his slowly building feud with El Cuatrero, which led to Ángel de Oro also losing his mask.^[25] On July 17, Roja successfully defended the light heavyweight championship against Sansón.^[26] Later that year, he began a storyline rivalry with veteran wrestler Rey Bucanero, facing each other repeatedly as Bucanero often cheated to gain supremacy in their rivalry. In the end, Niebla Roja defeated Rey Bucanero in a Lucha de Apuestas match, forcing Rey Bucanero to be shaved bald as a result.^[27]

The Universal Championship was the start of a storyline between Los Hermanos Chavez and Los Ingobernables (El Terrible and La Bestia del Ring), as El Terrible cheated to defeat Niebla Roja with the help of La Bestia del Ring.^[28] After several matches between the two sides, they all signed a contract for a Luchas de Apuestas match as the main event of CMLL's 2019 Homenaje a Dos Leyendas event.^[29] On March 15, 2019, Los Hermanos Chavez defeated Los Ingobernables two falls to one, forcing both El Terrible and La Bestia del Ring to have all their hair shaved off.

Los Nuevos Ingobernables (2020–present)

In late 2020, despite being booked as tecnicos, Niebla Roja and Ángel de Oro began showing rudo tendencies, which came to a head at Leyenda de Azul. At the event, they worked with El Terrible (the last remaining member of Los Ingobernables), who helped Ángel de Oro win the cibernetico match.^[30] Afterwards, they continued to work together under the name Terriblemente Chavez, although Niebla Roja and his brother were still referred to as tecnicos. On March 24, 2021, they cemented their rudo turn and joined El Terrible, forming Los Nuevos Ingobernables.^[31] On January 23, 2022, Ángel de Oro and Niebla Roja won the CMLL World Tag Team Championship.^[32]