NEW YORK – Alycia Baumgardner’s promoter mentioned four potential opponents for the fully unified 130-pound champion early Sunday morning before Mikaela Mayer’s name came up during a post-fight press conference.

Eddie Hearn discussed Baumgardner boxing Hyun Mi Choi (20-0-1, 5 KOs), the WBA’s super featherweight champion in recess, in Detroit, where Baumgardner trains. Matchroom Boxing’s managing director also talked about showdowns with three other undisputed champions, featherweight Amanda Serrano, lightweight Katie Taylor and junior welterweight Chantelle Cameron.

Brooklyn’s Serrano (44-2-1, 30 KOs) and Ireland’s Taylor (22-0, 6 KOs) will fight next in a 10-round rematch scheduled for May 20 in Dublin. A fight with England’s Cameron (17-0, 8 KOs) would require Baumgardner to move up two weight classes.

The 28-year-old Baumgardner became women’s boxing’s undisputed 130-pound champion Saturday night, when she defeated France’s Elhem Mekhaled by unanimous decision at Madison Square Garden’s Hulu Theater. Baumgardner (14-1, 7 KOs) dropped Mekhaled (15-2, 3 KOs) twice in the third round, battered her during the seventh round and won by scores of 99-89, 99-89 and 98-90.

When Hearn was asked about Baumgardner boxing Mayer again, Baumgardner’s co-promoter made it clear that it’ll be up to Mayer’s promoter, Bob Arum’s Top Rank Inc., to make a hefty financial offer for their second fight. Baumgardner beat Mayer by split decision in their 10-round, 130-pound title unification fight October 15 at O2 Arena in London, but the debatable outcome of their closely contested clash warrants a rematch.

Baumgardner, of Bingham Farms, Michigan, promised during her post-fight interview in the ring with DAZN’s Chris Mannix that she would knock Mayer out in a rematch, which prompted Mayer to blow Baumgardner a kiss from her ringside seat. Hearn’s comments later, however, seemed to indicate that Mayer isn’t a realistic option for Baumgardner’s next fight.

“Listen, I reached out to Top Rank and I said, ‘What do you think about the Mikaela Mayer rematch?,’ ” said Hearn, who co-promotes Baumgardner with Marshall Kauffman's King's Promotions. “This is after the first fight, and I said, ‘Make us an offer. And it better be a massive offer, with plenty of zeroes on it.’ And it never came. Lots and lots of zeroes, you know? And it never came, so they can’t want it that bad, because if they, you know, and we would entertain a rematch. It’d be a lotta money, but it’s a massive fight in America. Detroit – perfect. But, you know, wherever, in [Madison Square] Garden, Vegas. But the offer’s gotta be right. [Baumgardner] went and boxed on their show, as the away fighter, and won. And they paid her well. But now it’s gotta be a lot more.”

Mayer (17-1, 5 KOs) is from Southern California, but her fight against Baumgardner was part of a card Top Rank co-promoted 3½ months ago in London. ESPN, which has an exclusive output deal with Top Rank, streamed Baumgardner-Mayer as a co-feature before three-division champion Claressa Shields (13-0, 2 KOs) beat British rival Savannah Marshall (12-1, 10 KOs) by unanimous decision in the 10-round main event, a fight for the IBF, WBA, WBC and WBO middleweight titles.

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