Kyle Walker's wife, Annie Kilner, could reportedly be entitled to half of the Manchester City and England star's fortune.
Kilner has confirmed the pair have split after two years of marriage, having known each other since they were teenagers.
On Thursday, she took to Instagram to update fans by saying: "I am posting this in response to growing recent media enquiries about my marriage to Kyle and in an effort to protect my family against the intensity of the media spotlight.
"Sadly, after many years of marriage and three wonderful children together; I have decided to take some time away from Kyle.
Kyle Walker and Annie Kilner have split up after marrying back in 2021
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"I do not wish to comment on the position any further.
"For now, I ask that the privacy of myself and our three young children is respected during this difficult time."
Now, according to the Daily Mail, Kilner could be entitled to half of Walker's fortune if they divorce.
The Manchester City and England star is worth around £27m.
And that would mean Walker's other half potentially getting as much as £13.5m if they choose to go through the courts.
Kilner is said to have brought in Coleen Rooney's trusted PR advisor, Rachel Monk.
Monk helped Rooney through the Wagatha Christie controversy with Jamie Vardy's wife, Rebekah.
Kilner and Walker met as teenagers in Sheffield and have three sons together, with the City star having another child from a separate relationship.
Walker had that child with Lauryn Goodman.
Yet the publication says that, while the 33-year-old promised he was no longer in contact with Goodman, Kilner kicked him out of their £2.4million Cheshire mansion five months ago.
He is said to now live in a luxury Manchester penthouse.
The report says Walker's alleged cheating during the relationship won't entitle Kilner to more of the footballer's fortune.
A friend has claimed their split is 'extremely sad'.
They said: "This break-up is extremely sad because Kyle and Annie, despite their previous problems and rows, had been doing their best to make a go of it.
"Things were getting better and they were going to try for a fourth child together to give their three sons another sibling.
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Kyle Walker and Annie Kilner pictured during happier times at the 2022 World Cup in Qatar
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"This is all very upsetting for Annie."
The insider also claimed the couple had a 'series of rows' before the split.
"Annie has no time for Lauryn, but she is aware she was staying up in Cheshire for a while a year or so ago," she said.
"The big question for Annie is whether Kyle met Lauryn during that time she had moved north and whether he has lied to Annie.
"Annie and Kyle have had a series of rows and Lauryn is generally in the middle of it.
Kyle Walker has another child with Lauryn Goodman in addition to the three he has with Annie Kilner
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"None of their friends can really put their finger on the dynamics of the marriage.
"People are saying lawyers might be getting involved and seeking a settlement.
"But nobody knows whether there was a pre-nuptial agreement or whether they will get back together in a week or so.
"They do love each other and are great parents to their sons."