noticed this regarding Roan carniero :
Specific accomplishments in amateur competition? Brazilian Jiu-Jitsu Champion, Pan American Champion and Champion of Rio de Janeiro. Bruxells International Grappling champion, 1st Place ADCC Brazilian Trials, winner of many tournaments in Brazil.
Specific accomplishments in pro competition? Champion of Deep Japan, Meca World Champion in Brazil, ShowFight in Brazil, Shooto Switzerland.
Ranks in any martial arts styles: Black Belt in Brazilian Jiu-Jitsu, D1 wrestling in Brazil.
Also wiki caps him as a 3rd degree jiu jitsu black belt also not going to bother to say he is 37 years old, but he is Brazilian and has 50% of his wins via sub so far. No idea if he is any good though but he must be with that resume, also wiki says he is with American top team.
This is a big event with 14 fights so hopefully good chance to make some BR !