Mr. Niebla

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. 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.