Vagner Rocha is a machine. 

The Brazilian jiu-jitsu black belt and UFC veteran dominates on the mats, using an aggressive, relentless style to frustrate and to overwhelm his opponents. 

Watch XFN 21 LIVE on FloCombat

And while Rocha excels in both MMA and pure BJJ, his skill set was practically made for combat jiu-jitsu. Adding open palm strikes to his grappling attack, Rocha is a feared man in the realm of CJJ. 

He is the current Combat Jiu-Jitsu Worlds lightweight king, and he returns to his kingdom Sunday, Aug. 26, at XFN 21 live right here on FloCombat. 

He faces Alex Marin, joining four other CJJ matchups and a stacked, 14-bout MMA card live from Coral Springs, Florida. 

Check out Rocha's CJJ highlights below, courtesy of BJJ World, then tune in to FloCombat Sunday evening at 6 PM ET to see if he can topple Marin in the night's main event.  

Watch XFN 21 LIVE on FloCombat