Dustin “Clean” Denes is an American grappler who holds victories over big names in the sport such as Marcelo Garcia, Raphael Abi Rihan, Delson Heleno, Marc Laimon and Jeff Monson. A Brazilian Jiu Jitsu black belt under Marcus “Conan” Silveira, Dustin Denes spent many years of his life competing and training in Brazil with masters such as Ricardo De La Riva and Murilo Bustamante.
https://www.bjjheroes.com/bjj-fighters/dustin-denes