According to Vegas, if the fight were to happen Cyborg would be the underdog:
Just because the world is talking about a Ronda Rousey vs. Cristiane Justino "super fight" (guilty as charged), doesn't mean it's any closer to actually happening. Still, it's hard not to wonder if the mainstream exposure (like this) won't be enough to finally get the deal done.
The champ goes up, the challenger comes down, whatever ... let's just make it happen.
With that in mind, the sportsbooks have already set an opening line for "Rousey vs. Cyborg" and not surprisingly -- based on the Brazilian's considerable might -- the line is as close as it has ever been for a "Rowdy" fight. In fact, the last time the Judoka was sporting a gap this narrow was her Strikeforce title fight against Miesha Tate.
Rousey opened at -245 against +197 for Justino, according to Best Fight Odds.
That line has since changed (see the current odds at Bovada here) but is likely to hold steady until this fight inches closer to becoming a reality. Rousey (12-0) must first face Miesha Tate -- where she's a 10/1 favorite -- while Justino (14-1) needs to finish up her work for Invicta FC.
Until then, all we can do is wait.
The longer we do, the more difficult it will become to make a profit on Rousey. But if you're a "Cyborg" fan with some extra coin, better to let that number balloon up. The bigger she is as an underdog, the more money she'll bring you with an upset victory.