i know gaudio wasnt trained and groomed to be a tennis pro like coria. he played football and rugby as well. i dont know all the details, GWH might be an authority on this.
Yes, blaze you got the crux of that right. Gaudio didn't set out to become a tennis player and he played rugby and football as well. Zabaleta and Puerta were the big juniors at that time and Gaudio didn't play international junior events and got serious when he realised that Puerta was doing well and it was a good way to help out his family.
Mecir was another one who didn't travel with a coach and he only took the game as something a bit more than fun when he was 15 and made a tour final at 18.