Much has been made of his Soccer and cycling careers and his late start into the sport, but dose he have any amatur boxing background or did he start off as a pro boxer?
from doghouse: During an outstanding amateur career with a total of 41 bouts, Martinez was a 2-time Argentine Champion as well as Inter Continental Champion. He was a member of the National Team where he participated in the 1997 World Amateur Championship in Hungary, along with teammates Omar Narvaez, Javier Alvarez, Fabricio Nieva, Guillermo Saputo, and Santiago Nieva.
http://www.montrealgazette.com/sports/Diaconu+aims+keep+boxing+career+alive/4799815/story.html here's a link saying martinez was beat by adrian diaconu at the '97 world championships.