Iván “Iron Boy” Calderón takes a break from his training to visit the mayor of Mexicali. This Saturday, Calderon faces WBO junior flyweight champion Giovani Segura in a rematch, which takes place at the Auditorio del Estado in Mexicali, Baja California. Calderon (34-1-1, 6KOs) wants to avenge the only loss his career, which came to Segura (26-1-1, 22KOs) last August by knockout.