Now that she has fully unified the 154-pound titles, Claressa Shields would gladly move back up to the middleweight division to settle an old score.

Shields called out amateur nemesis Savannah Marshall following her dominant performance against Marie-Eve Dicaire in their 10-round junior middleweight title unification fight Friday night in Flint, Michigan, Shields’ hometown. England’s Marshall (9-0, 7 KOs) is the only amateur or pro opponent to defeat Shields, who lost a 14-8 decision to Marshall in an Olympic qualification tournament in May 2012.

“Savannah Marshall can’t f--- with me,” Shields told Dan Canobbio during her post-fight interview in the ring. “Let’s keep it real. Let’s keep it real. Like, I wanna say something cuz I know she out there watching – Savannah Marshall, you won a lucky decision when we was kids. I was 17. Also, London was hosting the Olympics [two months later]. She know if you wanna gloat about you beating me, eight points to 14, come on, now. And then you let me become champion in three different weight classes, and you pro?

“Make it make sense. Savannah Marshall know she cannot and will not ever be able to f--- with me. And she can come to America, I can go to the UK, we can go to Mexico. Wherever Savannah Marshall wanna go, I will f--- her up – literally. Literally. She knows that.”

Marshall, 29, is tentatively scheduled to make the first defense of the WBO middleweight title April 10. Her opponent hasn’t been announced.

The 25-year-old Shields (11-0, 2 KOs) is widely viewed as the undisputed middleweight champion. She thoroughly out-boxed Germany’s Christina Hammer (26-1, 12 KOs, 1 NC) in their 10-round, 160-pound title unification fight in April 2019 at Boardwalk Hall in Atlantic City, New Jersey.

The two-time Olympic gold medalist moved down to the 154-pound division for her following fight. Her easy points victories over Croatia’s Ivana Habazin (20-4, 7 KOs) and Quebec’s Dicaire (17-1, 0 KOs) established her as the undisputed champion in that division as well.

Shields shut out Dicaire on all three scorecards – 100-90, 100-90 and 100-90 – in their pay-per-view main event at Dort Federal Credit Union Event Center.

After another superb performance, Shields suspects Marshall won’t fight her anytime soon.

“How come she ain’t fight me for all the belts at 160?,” Shields asked. “Why she wanna fight for a vacant title? Cuz she’s scared of me. Exactly. Exactly. I’ve been wantin’ smoke for years. Savannah Marshall can get it. And tell Eddie Hearn [Marshall’s promoter] he came with that whack-ass $250,000. Tell him he better come with $500K, $750,000, if he want me to come over there to the UK to smoke his girl. Pay me!”

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.