Full name
john herrera

Birthdate
January 12, 1958

Debut
On March 8, 1976, in Mérida, Yucatán, he beat José Jiménez on points in four rounds.

won the world title
On September 26, 1981, in Mérida, Yucatán, he knocked out Luis Ibarra in 11 rounds and won the World Boxing Association flyweight title.

Lost His Title
In his second defense on May 1, 1982, in Mérida, Yucatán, the Argentine Santos Benigno Laciar technically knocked him out in 13 rounds.

Withdrawal
On July 23, 1988, in Tijuana, Javier Lucas knocked him out in three rounds.