Rousey - Counter?
Palhares looked unstoppable if he got a hold of your leg. Then he met Alan Belcher.
Rousey isn't a machine. (Damn close, considering she was defending armbars in the crib.) She can be stopped. But it's almost impossible to keep a fight off the ground if the opponent really wants it there, and has any level of skill. Plus, no offense to the ladies, generally less upper body strength with them. Harder to stuff a takedown.
So, outside of knocking her out, how do you keep Rousey from making it her-whole-body vs your arm?