You're looking at "Iranian Hulk" Sajad Gharibi -- a powerlifter who's become a social media sensation -- and he's about to try his hand in MMA.
The good news ... UFC star Brian Ortega is offering up some advice for the massive 27-year-old -- but that advice comes with a serious warning!
Long story short ... Ortega is 100% confident he would destroy Gharibi in a fight -- despite weighing roughly 250 POUNDS less!!!!
"I would just gas him out, piss him off," Ortega tells TMZ Sports.