Érik Isaac Morales Elvira (born September 1, 1976 in Tijuana, Baja California, Mexico) is a Mexican professional boxer. He is the first Mexican-born boxer in history to win world titles in four different weight classes. He is a former WBC Light Welterweight Champion, WBC & IBF Super Featherweight, WBC Featherweight (x2) and WBC & WBO Super Bantamweight Champion.

Morales has defeated 15 different world champions during the course of his career. He is famous for his trilogies with fellow Mexican legend three-division champion Marco Antonio Barrera and Filipino octuple champion Manny Pacquiao. He is also the last boxer to beat Pacquiao. He ranks #49 on ESPN's 50 Greatest Boxers Of All Time.

Erik Morales was born in the Zona Norte section of Tijuana. Under the tutelage of his father, José Morales, a fighter himself, Erik started boxing at the age of 5 and amassed a very impressive amateur career that saw him fight 114 times (108–6) and win 11 major titles in Mexico. Morales made his professional debut at the age of 16, by knocking out Jose Orejel in two rounds. Between 1993 and 1997, he quickly climbed the ranks in the super bantamweight division, winning 26 fights, 20 by knockout, including wins against former champions Kenny Mitchell and Hector Acero Sánchez, before challenging for his first world title. It was during this time that he signed with promoter Bob Arum.

Wayne Pocket Rocket McCullough (born Wayne William McCullough, 7 July 1970 in Belfast, Northern Ireland) is a professional boxer. During his professional career, which spans back to 1993, he held the WBC title in the bantamweight category. In May 2004, Wayne legally changed his name by deed poll to Wayne Pocket Rocket McCullough.

As an amateur, McCullough participated in the 1988 Summer Olympics in Seoul, Korea and was asked to carry the Irish flag because he was the youngest member of the team at 18 years old. Even though he lived on the staunchly Protestant Shankill Road area, he was honored to carry the flag of the country he was representing. He went on to win a silver medal for Ireland at the 1992 Summer Olympics in Barcelona, and a gold medal at the 1990 Commonwealth Games in Auckland, where he was also honored to carry the Northern Ireland flag in the closing ceremony while representing that country.

The medal ceremony for his Commonwealth title was marked by an unusual incident. A technical problem with the public address system made it impossible to play the recording of the Northern Ireland anthem, Londonderry Air. The New Zealand official in charge of the sound, Bob Gibson, promptly took the microphone and sang the anthem unaccompanied, using the politically neutral lyrics to "Danny Boy", normally sung to the same tune.