according to reports, the young carlos gracie refined his system by fighting in matches that were open to all skill levels and learning from those experiences to make jiu jitsu more effective. some reports claim that he advertised in newspapers and on street corners for new opponents upon whom to practice but no documented records of this exist. gracie claimed to have fought anyone and everyone who was willing, regardless of size, weight, or fighting style. later, his claims were challenged by his brother jorge gracie, who stated; "my brother carlos is nothing when it comes to fighting. carlos does not have the authority nor the competence to speak about jiu jitsu… who created the sporting tradition of my family if not me, in all honesty, with my career?"