UFC flyweight Deiveson Figueiredo will NEVER lose the championship belt for the rest of his career ... and it's all thanks to his brand new tattoo!!
The 34-year-old Brazilian star showed off the new ink job on Wednesday ... just days after taking the belt back from Brandon Moreno via unanimous decision at UFC 270.
Deus da Guerra got the tat on his right forearm ... featuring the belt with "Deiveson Figueiredo World Champion Flyweight" etched in the middle with the UFC logo.
It's a confident move by Figueiredo -- after his win on Saturday, he told fans he was willing to run it back with Moreno to settle the score once and for all -- and he's open to fighting in Mexico.
In fact, we spoke with Moreno about the possibility of fighting in front of his home crowd ... and he seemed 100% in on the idea -- but made it clear he'll fight the guy anywhere.
We're assuming Figueiredo will keep the tat no matter what happens in the 4th fight. After all -- once a champ, always a champ.