Katie Taylor and Amanda Serrano are both set to pocket seven-figure sums from their world title showdown on Saturday night.
But Serrano's promoter Jake Paul wants to see them earn even more money if they clash in a rematch further down the line.
He said earlier this week: "If this happens again or one like it, we're going to have to get these ladies even more of a payday because I've never seen this amount of media at any fight.
"I'm talking eight figures and they deserve it."
Paul also made a $1million bet with Eddie Hearn on who will win the fight and said he will give his winnings to Serrano if she has her arm raised in victory.
Taylor comes into the fight as the underdog with the bookies for the first time in her career, but she couldn't care less.
She said ahead of the fight: "It honestly doesn't matter to me whether I'm seen as the underdog or the favourite. I don't take any notice of that.
"Even as an amateur boxer and through all these years as a pro I couldn't tell you if I was the underdog or the favourite going into any fight.
"I couldn't care about other people's opinions. All that matters is what I think about the fight and where my mindset is and that's all that matters to me.
"I feel in great shape. I'm ready to put on a great performance and I'm just ready to make history."
Taylor's long-time coach Ross Enamait is usually quite reserved but is very bullish about the 35-year-old's chances this weekend.
The fitness fanatic, who Taylor has worked with in Connecticut since turning professional in 2016, says his fighter has had a "phenomenal" training camp.
He said: "It's business as usual. We've been here before. Katie thrives under the bright lights.
"We're coming to fight. Katie's ready. I've never been more confident in her.
"Everybody says they've had a great camp. We've had a phenomenal camp.
"She hasn't looked better, she's had some phenomenal spars and she is ready to put on a show on Saturday."
He added: "Great fighters are great when it matters and Katie is a great athlete. She's special, she's unique and she's never ducked a challenge.
"We have fought everybody - [Delfine] Persoon twice, , [Christina] Linardatou, [Jessica] McCaskill. She goes after everybody so as big as the event is, it is just another fight because we've been here before.
"Katie is going to go and show the world what she's all about on Saturday."
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