Rousey, Cormier dazzle at UFC 170

So Ronda Rousey is finishing fights by knockout now.

One body shot finish over Sara McMann does not prove Rousey is the best female striker in MMA (something she claims to be), but it does show she's adding to her game. The arm bar will always be in her back pocket, but it's not her only weapon.

Prior to facing Rousey, McMann was undefeated in seven pro fights, accumulating approximately one hour of cage experience along the way. It took Rousey 66 seconds to defeat her, using a skill she's not even known for. That's saying something.

"People forget I won the title a year after my first pro fight," Rousey said. "I'm learning still. It took me a long time to feel like I wasn't just doing the judo I learned as a kid. I'm more well-rounded as a martial artist and looking for what's available."