IBF, WBA, WBC middleweight champion Claressa Shields has hit back at her career rival, WBO champ Savannah Marshall.

Last Saturday night in Cardiff, Marshall was ringside to watch Shields retain her titles with a one-sided decision win over mandatory challenger Ema Kozin.

In the aftermath, Shields and Marshall came face to face to exchange verbal jabs.

Marshall will defend her title against Femke Hermans on March 12.

Should Marshall win, she will collide with Shields in the summer.

“I always show up and win, I hope that Marshall does her job because if that’s what they’re saying is the biggest women’s fight because she’s got some power and a little bit of height, I’m going to show them that Flint town come put the beatdown wherever," Shields told Give Me Sport.

Marshall handed Shields her only defeat in a boxing ring, back when they were amateurs.

The unbeaten Brit stated in a post-fight interview that Shields was boring in her most recent win, had pillow-fists, and warned the two-time Olympic gold medal winner that she would 'wipe the floor' with her.

“Yeah, she’s so disrespectful. The accomplishments don’t compare. I wanted to let the girl borrow a belt. Why’re you walking up here with no belts when I’ve got five, six belts? No. She doesn’t even know how to be a world champion. A champion never leaves their belts at home, especially when they’re about to face off with another world champion," Shields said.

“But it would’ve looked embarrassing anyway. You showing up with one belt talking stuff, no Olympic gold medals, one weight class, one belt. Please, quit playing with me. I don’t even play like that.

“But talking about wiping the floor and this and that – I haven’t been impressed with any of Savannah Marshall’s fights. She’s fighting 147 pounders and knocking them out and they’re getting a week’s notice. When you actually fight against the top, them girls just don’t lay down, I’m sorry, they don’t."