Niebla Roja

[2] He made his professional wrestling debut in 2006, under the name Guerrero Inca (Incan Warrior), as an enmascarado, or masked wrestler, working mainly in the local Gómez Palacio, Durango area.

The feud led both Chávez to work for International Wrestling Revolution Group (IWRG) on opposite sides, but Sergio broke his arm in early 2008 and he did not compete for eight months.

The other participants included Ángel Azteca Jr., Rey Cometa, Pegasso, Tiger Kid, Pólvora, Inquisidor, Súper Comando, Angel de Oro and eventual winner Máscara Dorada.

Ángel de Plata teamed up with Héctor Garza and together they defeated Averno and Pólvora in the first round, before losing to eventual tournament winners La Ola Amarilla ("The Yellow Wave"; Naito and Okumura).

[10] January 15, 2010 Super Viernes Ángel de Plata lost a Lighting match to Raziel, one of the members of Los Cancerberos del Infierno, continuing the building storyline between the two factions.

[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.

[12] 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"), while also turning rudo in the process.

[18][19] 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.

[24][25] On June 10, 2017, Niebla Roja won a 10-man torneo cibernetico elimination match to win the vacant CMLL World Light Heavyweight Championship.

Both wrestlers put their masks on the line in a Lucha de Apuestas match, and as a result of his loss Niebla Roja was forced to unmask afterwards and state his legal name: Sergio Raymundo Chávez Velasco.

[27][28][29] In the spring of 2018, Niebla Roja supported his brother in his slowly building feud with El Cuatrero, which led to Ángel de Oro also losing his mask.

At the event, they worked with El Terrible (the last remaining member of Los Ingobernables), who helped Ángel de Oro win the cibernetico match.