Mexico is mourning the death of one of its greatest athletes. Juan Baños, a famed wrestler known as "Lizmark," passed away Wednesday due to a heart attack, according to Televisa Deportes. He was 66.

The Consejo Mundial de Lucha Libre (World Wrestling Council) ---the oldest wrestling company in the world--- announced the heartbreaking news on its official Twitter page, confirming and sympathizing the death of "Lizmark." He is survived by his family, including his two sons who are also professional wrestlersLizmark, Jr. and El Hijo de Lizmark.

Baños was born in Oaxaca, Mexico, but grew up in Acapulco, where he eventually started working in hotel management. He was trained to be a boxer by his uncle; yet, made his professional wrestling debut in 1976. Baños chose his ring name to be "Lizmark," inspired by the German battleship Bismarck. His nickname was El Geniecillo Azul, which is Spanish for The Blue Genie. 

The multiple-time champion, was a leader of Mexican lucha libre in the '80s and '90s. In 1999, however, he announced his retirement due to heart problems. In 2001, Lizmark was inducted into the Wrestling Observer Newsletter Hall of Fame. May he R.I.P.