Liverpool co-owners Tom Hicks and George Gillett are facing new pressure to sell.
It has emerged the American duo may struggle to refinance their debts after an October 6 deadline.
It is understood that the Royal Bank of Scotland moved the debt to be dealt with by their restructuring team, which makes it more likely they will demand immediate repayment or instead sell the debt to a third party.
That move could allow the third party to effectively take control of the club.
Hicks and Gillett bought Liverpool in 2007 using loans of £237million and their company Kop Holdings' debts have now spiralled to £361million.
They have been actively searching for a buyer for six months without success.
