TMZSports.com

Kayla Harrison Says She'll Go Down As Best Female MMA Fighter Ever, Down To Fight Amanda Nunes

"9 fights into my career, I believe that I'm going to be the greatest." That's 30-year-old MMA star Kayla Harrison predicting that she -- NOT Amanda Nunes, Cris Cyborg or anyone else -- will go down as the best mixed martial arts fighter ever.

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