Morales is renowned for his fierce rivalries with fellow Mexican boxer Marco Antonio Barrera and Filipino legend Manny Pacquiao, engaging in trilogies with both fighters that are considered among the greatest in boxing history.

Known for his aggressive fighting style, durability, and willingness to face top-level competition throughout his career.

After retiring from boxing, Morales transitioned into politics, serving as a member of the Chamber of Deputies in Mexico.

He has also worked as a boxing analyst and trainer, contributing to the sport beyond his active fighting years.

WBC Junior Featherweight Champion

WBC Featherweight Champion (twice)

Unified WBC and IBF Junior Lightweight Champion

WBC Light Welterweight Champion

First Mexican-born boxer to win world titles in four different weight classes.

Inducted into the International Boxing Hall of Fame in 2018.

Defeated 15 world champions during his career.

Vs. Daniel Zaragoza (September 6, 1997): Won by knockout in the 11th round, capturing the WBC Junior Featherweight title at age 21.

Vs. Marco Antonio Barrera I (February 19, 2000): Won by split decision, retaining the WBC Junior Featherweight title in a bout named Fight of the Year by The Ring magazine.

Vs. Manny Pacquiao I (March 19, 2005): Won by unanimous decision, handing Pacquiao his first loss in the Junior Lightweight division.

Vs. Marcos Maidana (April 9, 2011): Lost by majority decision in a closely contested fight for the interim WBA Junior Welterweight title.

Vs. Danny Garcia I (March 24, 2012): Lost by unanimous decision for the WBC Junior Welterweight title; this was one of his final professional bouts.