As a female boxer, Maureen Shea has a unique perspective on the banter between Ronda Rousey and Floyd Mayweather Jr.

In a no-rules fight, Shea, the super bantamweight boxing champ, is still taking Rousey. In fact, she would expect the MMA fighter to "break his arm off."

Shea, 34, who has not lost since 2009, even cracked in a recent Periscope session with boxer Shane Mosley that she would be happy to set up the fight.

Shea is nicknamed "The Real Million Dollar Baby," as she was Hilary Swank's sparring partner during preparations for the 2004 film "Million Dollar Baby." Shea says Rousey isn't ready for boxing right at this moment, but if she trains, she could transition to the sport.

"You don't just walk into my sport and say that I'm going to do what you're going to do," Shea says. "Her athleticism, her desire to win, I respect every ounce of it. And you know, if she gives it the time, and just trains straight-up boxing, I think she would do really well."

Ronda Rousey

Rousey, the UFC bantamweight champion, was a judoka before she got into MMA. Rousey qualified for the 2004 Olympics as a 17-year-old and then won a bronze medal at 70 kg in 2008. She made her MMA debut in 2010.

Although Shea's skills are limited to strict boxing, she is interested in joining Rousey in the no-rules fight against Mayweather.

"Shoot, I'd help her," Shea says.

Mosley, a male boxer, awkwardly sits laughing as Shea bashes into Money Mayweather.

More Rousey: 20-Foot Mural Of Ronda Rousey Created By Artist Jonas Never In Venice Beach

Ronda Rousey: Outside The Octagon

Story continues below