Mercedes Mone Says She'll Fight Anyone, Anywhere, 'I Turn Down To Nobody'

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."

Mercedes said competing in front of a sold-out crowd at the San Jose Civic Center in California -- close to where she grew up -- was special ... adding working with her opponent, Kairi, who she defeated to become champ, was an incredible experience.

Mone told us now that she's the IWGP champ, she's got big plans. In addition to showing off her gold on red carpets, she also called out Japanese pro wrestler AZM ahead of her scheduled appearance at Sakura Genesis in Tokyo on April 8.

"I wanna see who's ready for Mercedes Mone," the champ said. "I'm always here for the check. I'm always here for the bag and whoever has the biggest bag is where I'm gonna go."