I bet Mrs. Giblert, Keri Melendez even at -310 over Mandy Polk. The latter is very muscular and has a decent armbar, but her wrestling is deceptively poor considering her build. She got taken down herself multiple times by lesser opponents, submitted by pre-UFC Mackenzie Dern and even mounted and stopped with ground & pound by the late Katy Collins. I would not be surprised if Keri can keep it on the feet and outstrike Polk, or even outgrapple her by landing on top in takedowns and win by ground stoppage or reverse and get up en route to a decision.