Iván “Iron Boy” Calderón is training hard for the rematch with WBO junior flyweight champion Giovani Segura, which takes place at the Auditorio del Estado in Mexicali, Baja California on April 2. 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. Photos by Jose Perez/PRBBP