Mercedes Mone is putting the wrestling world on NOTICE ... telling TMZ Sports she'll fight any wrestler, anywhere, anytime -- saying, "I turn down to nobody."
We spoke to Mercedes -- formerly known as Sasha Banks in the WWE -- after she captured the IWGP championship in her New Japan Pro Wrestling (NJPW) debut last month ... and she was hyped about performing in front of her family and friends.
"It was a moment I'm always going to remember," Mone said. "It's probably my second favorite moment of my career thus far and that's saying a lot because I've done so much in professional wrestling.