"Man, I want to hurt him ... I want to see blood."
Violent threats from ONE Championship flyweight titleholder Adriano Moraes ... and the man on the receiving end?? Demetrious Johnson.
The two are set to do battle at "ONE on TNT I" on April 7 -- where Moraes is out to prove he's a G.O.A.T. killer.
The problem? DJ -- one of the greatest MMA fighters of all time -- ain't scared ... claiming he's already spotted AM's weaknesses and plans to expose the hell out of the guy on live TV.