Ronda Rousey's long-awaited return to the octagon was short-lived after she was sensationally beaten by UFC women's bantamweight champion Amanda Nunes in under a minute at UFC 207.

Fans barely had a chance to sit down as a bloodied and dazed Rousey was beaten via TKO in just 48 seconds in Las Vegas on Friday.

The poster girl of UFC, Rousey was making her comeback after more than a year away from competition following her knockout loss to Holly Holm, which cost the tenacious competitor her bantamweight title.

But Rousey was no match for Nunes, who recorded the third-fastest knockout in women's UFC bantamweight history.

"I knew I was gonna beat the s*** out of Ronda Rousey. I'm the best on the planet. C'mon, guys!," Nunes said after the fight.

"Forget about Ronda Rousey! She's gonna go do movies. Forget about her. She has a lot of money already."