I recently talked with a friend of mine. He once thought that it was possible to be self trained, to become a top boxer on natural ability. He did two camps sparring with Floyd Mayweather and raised the subject with Uncle Roger Mayweather. His reply?
As my friend related it to me, Roger said that Floyd knows nothing that was not taught to him. That his "natural ability" comes from daily education, since he was able to walk, from knowledgeable teachers.