Mr. Niebla

In the Primary match of CMLL's 66th Anniversary show, Atlantis and Villano III defeated the much less experienced team, afterward Mr. Niebla defeated Shocker to unmask him.

Efrén Tiburcio Márquez (February 22, 1973 – December 23, 2019), known under the ring name Mr. Niebla, was a Mexican luchador enmascarado (Spanish for masked professional wrestler) who worked for Consejo Mundial de Lucha Libre (CMLL).

"Niebla" is Spanish for "fog".

His in-ring style focused more on comedy, which often included pratfalls (a form of physical comedy based on falling on the buttocks), dancing and mocking his opponents during matches.

Mr. Niebla worked for CMLL from the early 1990s until 2007, and again from 2008 until his death in 2019.

In between, he worked for CMLL's main Mexican rival, AAA, where he was part of the stable Los Vipers.

Efrén Tiburcio Márquez made his professional wrestling debut on November 11, 1990, working under the Ring name Chamaco Audaz (the Audacious Kid).

In the early 1990s, Mr. Niebla began working for Mexico's largest professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL).

Early on Mr. Niebla worked mainly for one of the local CMLL-affiliates but did manage to win both the Distrito Federal Welterweight Championship and the Distrito Federal Tag Team Championship once.

By the mid-1990s Mr. Niebla worked full-time for the main roster, taking part in the 1996 CMLL Torneo Gran Alternativa.

Mr. Niebla was teamed with Héctor Garza and qualified for the finals but ultimately lost to Emilio Charles Jr.. and Rey Bucanero.

In March 1992 he finally came up with the name "Mr. Niebla", which he used since then.

Working as Mr. Niebla, he would earn the nickname El Caballero del Estilo Diferente (the Gentleman of the different style).

In 1997 Mr. Niebla formed a trio with fellow good guys (called Técnicos in Lucha Libre) Lizmark and Atlantis called La Ola Azul (the Blue Wave).

On April 29, 1997, La Ola Azul defeated El Satánico, Emilio Charles Jr.. and Rey Bucanero to win the CMLL World Trios Championship, Mr. Niebla's first major title victory.

Over the next year the team would successfully defend the title twice against the team of Apolo Dantés, Kevin Quinn and Steel and once against the previous champions.

On January 23, 1998, Mr. Niebla teamed up with Shocker to win the CMLL World Tag Team Championship from Dr. Wagner Jr. and Emilio Charles Jr.. Subsequently, Niebla and Shocker would defend the tag team championship against Blue Panther and Black Warrior, Bestia Salvaje and Scorpio Jr.. and the Hermanos Dinamita (Cien Caras and Universo 2000).

In October 1998 Mr. Niebla suffered a severe injury during a match, forcing him to vacate both the Trios and the Tag Team championships.

In early 1998 a wrestler in International Wrestling Revolution Group (IWRG) began working as "Mr. Niebla", adopting the same style mask and trunks as the original Mr. Niebla.

IWRG stated that the original Mr. Niebla did not hold the naming rights and a trainer gave him the name with the promotion obtaining permission from the trainer.

When the original Mr. Niebla was injured CMLL brought in the second Mr. Niebla and had him work matches while the original was injured.

When the original Mr. Niebla returned to the ring he immediately attacked the impostor.

The storyline between the two Mr. Nieblas ended when the two met in a Luchas de apuestas, mask vs. mask match for the rights to the name.

The original Mr. Niebla won, forcing the impostor to unmask and change his name to Mr. Mexico.

Mr. Niebla continued to team with Shocker; the team were unable to reclaim the tag team title.

On September 24, 1999, at the CMLL 66th Anniversary Show, the team of Nr.

Niebla and Shocker faced Atlantis and Villano III in a Relevos suicida match, a match where the losing team would fight each other for their mask.

Later he would work under various ring names and mask as El Pupilo (the Pupil), El Marquez, Shadow 2000, Chico Veloz (Fast Boy) and even "Batman" for a brief period.

The match against Wagner, Universo and Black Tiger III was part of a longer storyline between Mr. Niebla and Universo 2000.

On March 30, 2001, Mr. Niebla teamed up with Olímpico and Safari to defeat Blue Panther, Fuerza Guerrera and El Signo to win the Mexican National Trios Championship.

For the next 450 days the trios defended the title against Emilio Charles Jr.., Bestia Salvaje and Scorpio Jr..; Satánico, Averno and Black Warrior; Los Boricuas (Gran Markus Jr.., Poder Boricua and Violencia) and Los Infernales (Satanico, Averno, Mephisto).

Their second defense against Los Infernales was unsuccessful and on June 23, 2002, Mr. Niebla, Olímpico and Safair lost the Mexican National Trios Title.

One week prior, on June 16, Mr. Niebla had teamed up with Atlantis and Black Warrior to regain the CMLL World Trios Title from Dr. Wagner Jr. Blue Panther and Fuerza Guerrera.

The two had clashed in 2002 over Universo 2000's CMLL World Heavyweight Championship but at the time Universo 2000 had kept the title.

The team defended the titles into 2003, losing them to Dr. Wagner Jr., Universo 2000 and Black Tiger III on March 31, 2003.

On April 18, 2003, Mr. Niebla defeated Universo 2000 to become the CMLL World Heavyweight Champion.

In 2008 he, and Negro Casas created the group known as La Peste Negra (Spanish for "the Black Plague") that also includes El Felino and Bárbaro Cavernario.

Mr. Niebla, Felino and Casas held the Mexican National Trios Championship from 2014 to 2015, and Mr. Niebla won the CMLL World Heavyweight Championship.

He was also part of teams that won the CMLL World Tag Team Championship and the CMLL World Trios Championship.

Over the years, he won the Gran Alternativa, Torneo Nacional de Parejas Increíbles, and Leyenda de Azul tournaments.