Kayla Harrison's loss to Larissa Pacheco at the 2022 PFL Championships last Friday was a stunner. It was her first career defeat, and it came against a fighter she had beaten twice before -- and against whom she was an 8-1 betting favorite.
Aside from sending shockwaves through the PFL and women's MMA in general, the result also shined a light on how much of an enigma…

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