Omar Andrés Narváez (born July 10, 1975) is an Argentine professional boxer. He is a former WBO flyweight and super flyweight champion, and as an amateur was the first boxer from the 2000 Olympics to capture a major world title. Together with Julio César Chávez has the record for the most successful defenses of world titles (27).He won the WBO world flyweight title on July 13, 2002 by a unanimous decision win over Adonis Rivas. He defended the title 16 times with wins over Luis Alberto Lazarate, Andrea Sarritzu (twice), Everardo Morales, Alexander Mahmutov, Reginaldo Martins Carvalho, Bernard Inom, Rexon Flores, Walberto Ramos, Brahim Asloum, Marlon Marquez, Carlos Tamara, Iván Pozo, Alejandro "Payasito" Hernández, Rayonta Whitfield and Omar Soto. Wikipedia