The world's biggest jiu-jitsu tournament for veteran grapplers is back later this month, and we've got a look at the big-name black belts who have put their names in to compete at the World Master IBJJF Jiu-Jitsu Championship.

We're expecting nearly 4,000 competitors for the three-day tournament in Las Vegas, which will run on over 20(!) mats. Deadline closes on August 15, so more names could sign up but there are already a number of recognizable figures. 

Remember that the IBJJF World Masters goes down at the same time as the IBJJF Heavyweight Grand Prix, and you can watch them both live or on demand on FloGrappling. 

Take a look at some of the big names who are in so far:

BLACK / Master 1 / Male / Light-Feather
Milton Bastos - Well-known, very active lighter weight competitor
Pablo Silva - Fight To Win champion
Daniel Beleza - Exciting grappler and multiple-time Masters world champion 

BLACK / Master 1 / Male / Feather
Kim Terra - Brother of Caio, unorthodox and entertaining competitor 
Osvaldo "Queixinho" Moizinho - Super technical black belt, veteran athlete 

BLACK / Master 1 / Male / Light
Rafael "Formiga" Barbosa -- Co-founder of the Soul Fighters team 

BLACK / Master 1 / Male / Middle 
There are a massive 58(!) entrants in the Master 1 middleweight division, the largest of the black belt divisions. 
Josh Hinger - Atos black belt and submission machine 
Clark Gracie -- Super slick technician known for his omoplata game 
Eduardo Rios - Aka "Teta," Brazilian competitor and coach based now in Norway 
Oliver Geddes -- Roger Gracie black belt, known competitor, and coach 

BLACK / Master 1 / Male / Medium-Heavy
Taris Humphreys -- 2010 world champion in adult division, top Alliance rep
Vitor Oliveira - GF Team powerhouse, won gold at last year's Masters Worlds 
Diogo Araujo -- Soul Fighters black belt and veteran competitor 

BLACK / Master 1 / Male / Heavy
Diego Gamonal Nogueira -- BTT black belt with experience on multiple events 
Chico Mendes - A leading Checkmat coach and competitor 

BLACK / Master 1 / Male / Super-Heavy
Rafael Lovato Jr. - One of the few American men to win a world championships gold medal at black belt 

BLACK / Master 1 / Male / Ultra-Heavy
Joseph Moku Kahawai Jr. - Man-mountain from Hawaii 
James Puopolo -- Kneebar specialist from the Ribeiro team 

BLACK / Master 2 / Male / Light-Feather
Baret Yoshida - Crafty submission-machine with a brutal crucifix attacking system 

BLACK / Master 2 / Male / Feather
Denilson Pimenta -- GF Team black belt and exciting competitor 
Samuel Braga -- Gracie Barra featherweight technical innovator with a heavyweight-sized mean streak!

BLACK / Master 2 / Male / Middle
Claudio Cardoso (Caloquinha) -- Training partner of Felipe "Preguica" Pena, one of Gracie Barra's best from Brazil 

BLACK / Master 2 / Male / Medium-Heavy
Lucio Sergio dos Santos -- Brazilian based in the UK with a dynamic game and crushing style 

BLACK / Master 2 / Male / Ultra-Heavy
Bruno Bastos -- One of the most active big men competing in jiu-jitsu 
Roberto "Cyborg" Abreu  -- The big man beloved by the jiu-jitsu community

BLACK / Master 3 / Male / Medium-Heavy
Eduardo Telles -- Turtle guard creator and old-school name 

BLACK / Master 3 / Male / Heavy
Rafael Corrêa (Gordinho) -- Brother of "Gordon," developer of the half guard with a equally technical game

BLACK / Master 3 / Male / Ultra-Heavy
Fabiano Scherner -- Gracie Barra big man famous as Chael Sonnen's jiu-jitsu coach 

BLACK / Master 4 / Male / Heavy
Robert Zeps -- Founder of the well-known gym Studio 540 

BLACK / Master 5 / Male / Feather
Wellington "Megaton" Dias -- Father of Mackenzie Dern and perennial competitor who always delivers a show 

BLACK / Master 5 / Male / Medium-Heavy
Kurt Osiander -- Foul mouthed, hilarious, must-see 

BLACK / Master 6 / Male / Light
Rafael Lovato Sr. -- Father to Jr., marking the first time they compete together in the same Masters tournament 

BLACK / Master 6 / Male / Medium-Heavy
Brian Beauchamp -- Returning champion, judo black belt, and MMA ref who often wins without conceding a single point 

How to Watch IBJJF 2017 World Master Jiu-Jitsu Championship

On TV: Now available on Roku and Apple TV 4 -- download the FloSports app today.
STREAMING: Available only on FloGrappling via monthly or yearly memberships. A yearly FloPRO subscription provides access to ALL FloSports sites. SIGN UP HERE