Tepito is a barrio located in Colonia Morelos in Cuauhtémoc, a borough of Mexico City bordered by Avenida del Trabajo, Paseo de la Reforma, Eje 1 and Eje 2. Most of the neighborhood is taken up by the colorful tianguis, a traditional open-air market. Tepito's economy has been linked to the tianguis since pre-Hispanic times. It has long had a "reputation for crime, poverty, and a culture of lawlessness."

Luis Villanueva Páramo was a Mexican boxer best known as Kid Azteca. Villanueva boxed professionally from 1932 to 1961, making him one of a small number of fighters that fought during four decades. Archie Moore, George Foreman, Roberto Durán and Bernard Hopkins and Roy Jones Jr. are five other fighters in that exclusive group.