Trauma I is a Mexican luchador enmascarado, or masked professional wrestler, working on the Mexican independent circuit and as a freelance wrestler for promotions such as International Wrestling Revolution Group (IWRG), portraying a tecnico wrestling character. Trauma I's real name is not a matter of public record, as is often the case with masked wrestlers in Mexico where their private lives are kept a secret from the wrestling fans. Trauma I is a second-generation wrestler, the son of Miguel Calderón Navarro, better known under his ring name Negro Navarro. He is the younger brother of Trauma II, who he regularly teams up with under the name Los Traumas. Trauma I is a freelance wrestler and thus is not exclusively working for one specific professional wrestling promotion but has worked for many Mexican wrestling promotions including working matches on shows promoted by the largest Mexican based promotions such as Lucha Libre AAA Worldwide (AAA), Consejo Mundial de Lucha Libre (CMLL), and International Wrestling Revolution Group (IWRG).

Negro Navarro is the ring name of Miguel Calderón Navarro, a Mexican luchador, or professional wrestler. Navarro works as a freelancer on the Mexican independent circuit as well as making regular appearances for International Wrestling Revolution Group (IWRG). Navarro often teams with his sons, who are known as Trauma I and Trauma II. Negro Navarro was part of Los Misioneros de la Muerte with El Signo and El Texano; a team that is credited with popularizing the Trios match in Mexico to the point that it became the most common match for Trios teams in Mexican Lucha Libre.