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Floyd Mayweather's baby mama Josie Harris is furious that their 10-year-old daughter Jirah and one of Floyd's girlfriends wore the same dress to the Mayweather Canelo fight...

A little back story here: Josie Harris and Shantel Jackson have been low key beefing ever since Josie posted a picture of Floyd in her bed even though Shantel was supposed to be the main chick at the time [click here if you missed that].

Shantel and Floyd had a messy break up that included Floyd posting pictures of Shantel's shoes and handbags online saying he was about to sell them off [click here if you missed that].

Fast forward to Saturday night. Shantell, who tattooed a red heart on her wrist every time Floyd won a match while they were together, posted pictures on Instagram while she was getting ready to go to the fight saying she would never miss a match.

Turns out the dress she was wearing was an exact replica of a dress designed especially for Floyd and Josie's 10-year-old daughter Jirah. Meow.

From TMZ 
Floyd Mayweather Jr.'s baby mama is LIVID -- telling TMZ, her 10-year-old daughter was dressed up like some gold-digging hoochie at the big fight on Saturday ... and it's all one designer's fault.
The designer in question is Project Runway's Michael Costello -- and Floyd's baby mama Josie Harris tells us, Costello was hired to design a very special dress for the boxer's 10-year-old daughter Jirah to wear at the Canelo fight in Vegas (left).
Josie says the dress came out great -- but when they showed up to the fight, she noticed Floyd's on-and-off-again side piece Shantel Jackson wearing the same exact dress.
According to Josie, she paid Costello $795 for a one-of-a-kind dress, and now she's pissed the guy gave a replica to none other than Floyd's girlfriend ... who also sat ringside.
Josie tells us, "It's an unspoken rule and a cardinal sin for a 'real designer' to dress clients alike going to the same major event ... Tacky, tacky, tacky."
And Josie didn't stop there, turning her anger toward Jackson as well ... adding, "She is a total gold digger ... She conveniently came back around 2 days before Floyd got his $41.5 million check."
As for the designer, Costello says he will NOT be giving anyone a refund -- telling us, "No exclusivity was promised regarding the dress. If you want exclusivity, you need to pay more." Costello says his people told Miss Jackson that Floyd's daughter would be wearing the same dress and she didn't care.
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