Boxing world champion Claressa Shields says she would never fight on Jake Paul's undercard and has accused the internet star of taking opportunities away from other boxers.
Paul has become the most talked-about name in combat sports since pledging his future to the sport earlier this year.
The controversial 24-year-old has headlined several boxing events with talented fighters such as Regis Prograis, Amanda Serrano and Montana Love on his undercard.
But three-weight world champion Shields is frustrated that networks like Showtime are giving the Paul brothers top spots on their events because of their internet fame.
“What has Jake Paul done that’s so great to where he gets to be the main event pay-per-view on Showtime, but I don’t?," she said at a PFL Championship media day.

"I've got to fight under him. That’s the thing, it’s like I actually earned my opportunity.
"They’re just giving it to him. They’re like, ‘Hey, you’re Jake Paul, you’ve got a million subscribers on YouTube, you and your brother get to fight main event on Showtime.'
“That’s trash. I literally earned my spot and never was given an opportunity. That’s what p***** me off. It’s not really Jake Paul, it’s more like how dare they give him the opportunity that I earned."
Paul looks set to fight fellow celebrity Tommy Fury - the brother of WBC heavyweight champion Tyson - on December 18 in Miami.
Shields is the only boxer in history to hold all four major world titles simultaneously in two weight classes.
Also a two-time Olympic gold medalist, Shields made the switch from the ring to the cage in June winning her professional MMA debut by TKO.
And she will make her UK boxing debut in December when she defends her middleweight titles against Ema Kozin in Birmingham.
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The 26-year-old is undefeated in 10 fights and currently holds the record for becoming a two and three-weight world champion in the fewest professional fights.
And Shields said she wouldn't fight on the undercard of any boxer who hasn't earned their stripes in the ring.
"I fought the main event on Showtime six times, sold-out arenas for Showtime, and still would get the ‘We don’t think you’re big enough to fight on pay-per-view.’ Get out of here. It’s c***," she continued.
"That’s why I would never fight on the undercard of him or nobody else who haven’t earned it.
"If they’re not a world champion, Errol Spence, Manny Pacquiao, Floyd Mayweather, Terence Crawford, even Shakur Stevenson, if they not under them I’m not fighting on no undercard of no other men.”