Ronda Rousey was the most dominant female fighter in history at one point as she reigned supreme atop of the UFC.
Now, the 31-year-old is ready to embark on her first match in the WWE on the Grandest Stage of Them All - WrestleMania.
Rousey was 12-0 and the UFC women's bantamweight champion before two consecutive losses to Holly Holm and then Amanda Nunes saw her depart MMA and take up a career in WWE.
Now, the California-born star is set to team with fellow Olympian Kurt Angle against Triple H and Stephanie McMahon at WrestleMania 34 in one of the show's marquee matches.
Although Rousey has made the transition to her lifelong passion from MMA, one man who did the switch the other way around is CM Punk.
The Voice of the Voiceless lost via submission to Mickey Gall in his first-ever MMA fight at UFC 203 and didn't even land one strike.
Despite that embarrassing defeat in 2016, it appears as though the 39-year-old is going to get one more crack of the whip when he fights in front of his hometown of Chicago at UFC 225 in June - although his opponent is unknown at this time.
Considering Punk's age and record thus far in UFC, one could be forgiven for believing that the Best in the World could make a spectacular return to the WWE one day and Rousey is among those who hope so.
"I think everybody on Earth would love to see him back in WWE, and I would completely fall all over myself and be honoured if he wanted to be involved with me in any way, shape or form," Rousey told the Metro. "But also, it’s not all about everyone else. It’s his life and it’s about him. He’s doing what he enjoys, what he’s passionate about and what brings out the best of him.
"I’m sure there’s a lot of people that wish I would come back to fighting, but you know what, I don’t fight for them, and he doesn’t wrestle for us. He should do what he wants to do and what makes him into the person he feels like he’s meant to be. If that’s fighting right now, then all the power to him.
"Fight to your heart's content. Everyone in the world knows he has a gift for wrestling and he has something special, and if he ever feels like sharing it with us again, then hell yeah, please, even if it’s not with me, I just hope I’m there to see it. If he never wants to get back in that ring again, he has every reason not to, and all the respect in the world from me."
As they always say in wrestling: 'never say never'.