Should Bournemouth youngster Lewis Cook make his senior England debut against either Netherlands or Italy, it will be not only an extremely proud day for his family, but an extremely lucrative one too.
This is because, back in 2014, when Cook was still struggling to break into the Leeds United first team, his grandfather placed a £500 bet the then-teenage midfielder would win a senior international cap before his 26th birthday.
As such, Trevor Burlingham stands to win a whopping £17,000 should Cook make it off the bench in either of England's upcoming friendly fixtures.
"Lewis has obviously already had one call up but didn't win a cap and it now looks like a case of when, not if his grandfather is repaid for the faith he showed in his grandson," said Joe Crilly, a spokesman for bookmakers William Hill.
"He has been in fine form this season and is well deserving of a call up, so let's hope he can go one better and bag a cap in the next few days."
This wouldn't be the first time that somebody has won big money after speculating on a young family member's international potential.
Chris Kirkland's dad won £10,000 when his son first played for England in 2006 after placing the bet when the budding goalkeeper was just 12-years-old.
Harry Wilson's grandfather went one step further and won £125,000 after wagering that the Liverpool winger would one day play for Wales when he was just 18 months old.