This is dumb.
UFC superstars Daniel Cormier and Dominick Cruz -- who made a living off being fearless and smashing faces in the Octagon -- are in their feels over comments made about each other's commentating skills ... and the whole thing is incredibly petty.
Of course, Cruz recently blasted DC's fighting analysis at UFC 269 media day ... saying he mutes the TV when Cormier is on the mic, claiming he doesn't do his homework or watch enough film.
DC confronted the Dominator in a one-on-one sit-down on his YouTube channel Wednesday night .