Martinez started boxing at age 20.

[SonOfCuba]

was just watching an HBO about his life and he talks about being a professional cyclist and semi-pro soccer player and how went from soccer to boxing in one day at age 20 and a month later had his first professional fight.

Pretty Impressive stuff

[Rick Grimes]

Being a natural gifted athlete can make up for the training you missed.

[GrandpaBernard]

I wonder if he's still able to technically improved at such an old age. He started so late, so his habits wouldn't be as strongly ingrained compared to prizefighters who have been doing it ever since their baby days.