Nelson: Sergio Penha was Osvaldo Alves’ best student; his game is something very, very different. I don’t know how to say it……Just different, very DIFFERENT. Anyway I stayed for one year with Sergio Penha at his academy then I had some problems at the academy and I was a Brown Belt, when I asked Amaury, ‘where can I go now?’. Well he talked to Carlson, at that time the head teacher at the academy was Liborio and Bebeo Duarte and they accepted me at the academy and I went on to be awarded the black belt from Ricardo Liborio and Bebeo Duarte under the supervision and permission of Carlson Gracie.