Ronda Rousey defeated Sara McMann at UFC 170 without the use of her famed arm bar move.
Josh Hedges/Zuffa LLC/Zuffa LLC/Getty Images
If anything will force the Olympian out of Rousey, it's "Cyborg. Cormier needs just such a challenge.
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide—from Peter King, Tom Verducci, Lee Jenkins, Andy Staples, Grant Wahl, and more—delivered straight to you, along with up-to-the-minute news and live scores.