Bantamweight champion Shannon Courtenay has been denied the world title despite not making a single defense.
The 28-year-old Brit failed to shed the weight for her fight with Jamie Mitchell on Saturday evening after coming in over 2lbs.
Courtenay was expected to defend his first title on the undercard for Liam Smith’s super-welterweight grudge match with Anthony Fowler.
But at Friday’s weigh-in, she was over 120-and-a-half pounds, two and a half pounds over the 118-pound bantamweight limit.
The WBA gave him two hours to lose the weight but Matchroom Boxing confirmed that his client had been stripped of the title.
Promoter Eddie Hearn is still hopeful that the fight can go ahead as planned, allowing Courtenay to regain his crown on the first attempt.
His statement read: “Thank you to everyone who has been messaging me for checking in on me and sending me love.
“We didn’t have any weight issues during camp and all week I stayed in really good shape and prepared.
Betting Specials: Get 30/1 on Fury or 50/1 on Wilder for Heavyweight Boxing Clash
“We were on weight and ready to go yesterday and then last night, unexpectedly, my period started which, for obvious reasons, makes women gain weight.”
Courteney, who claimed a 7-1 record, claimed the WBA bantamweight title in April with a points win against Australian star Abani Bridges.
She said: “To say I’m devastated is an understatement because it’s never happened before.
“I’ve always been a professional but it was out of my control physically.
“It’s done and I can’t change it, but what I can do is go there last night, take the win and get my belt straight back.
“And that’s exactly what I’m going to do. I’m switched off now, I’ve got a fight to make up for.”
Click here for Live Updates on Fury Vs Wilder 3