Can't understand why people really think Zingano has a chance- Tate was laying a beating on her for two rounds, and Rousey is 10x the fighter Tate is. If Zingano can't even cope with Tate's wrestling, she is going to get ragdolled so hard in the first.
Face facts, there are 3 fighters that can pose a realistic threat to Rousey- McMann, Holm and Cyborg. McMann has some work to do, but I actually think she has the best chance of anyone still- her standup looked crisp, she avoided being thrown pretty neatly. She just has to up her clinch game and she could really push her next time, but she needs to do it fast.
Holm needs to seriously improve her TDD to incredible levels, and Cyborg needs to use a bit more fight IQ- but they have the tools to make it a good fight.
Rousey would still be a clear favourite against anyone at this current point, though. She goes as far as she wants as it stands until she loses motivation.
And let's be honest, everyone here would still dive on Arianny in a heartbeat, Brittany too. She still looks damn good.