Kayla Harrison has her next two fights mapped out, and they're whoppers -- starting with Amanda Nunes, and then ... Ronda Rousey?!
Sure, there's probably a better chance hell freezes over than Ronda returning to the Octagon, but crazier things have happened.
Harrison's manager, Ali Abdelaziz, made the revelation during a recent conversation with TMZ Sports ... starting with Nunes, 37, who most agree is the women's MMA GOAT.

"Kayla has a huge fight coming up.