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.
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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.