How good is Nate Diaz’s BJJ skills? The Cesar Gracie black belt is known for having one of the best ‘BJJ for MMA’ games in the UFC, with 11 of his 18 professional MMA victories coming by way of submission. Back in 2007, Diaz squared off against fellow TUF Champion and BJJ ace Ryan Hall in a adult purple belt gi match at the US Open. The two future stars went at it in a back in forth match before Diaz caught Hall for the submission victory. Watch the full match below.