Full name
Javier Rogelio Jauregui Delgado

Birthdate
September 5, 1973

Date of death
December 11, 2013

Debut
On February 26, 1988, in Guadalajara, he defeated Alejandro Ochoa by points in four rounds.

won the world title
On November 22, 2003, in Los Angeles, California, he technically knocked out Leavander Johnson in 11 rounds and seized the vacant IBF lightweight title.

Lost His Title
In his first defense, on May 13, 2004, 3n San Diego, California, Julio Díaz defeated him by majority decision.

Withdrawal
On January 12, 2013, in Tepeji del Río de Ocampo, Hidalgo, he defeated Fernando Ayala by technical knockout in three rounds.