Hicks and Gillett are expected to be asked by the banks to inject more of their own cash.

The fresh revelations come days after Gillett agreed to sell his 80% stake in the NHL's Montreal Canadiens ice hockey team, in a deal reported to be worth at least $550m (£332.9m).

Hicks has also been looking to sell off elements of his own sporting empire – which includes Major League Baseball's Texas Rangers and the NHL's Dallas Stars.

Mr KcKenna added: “We believe there is no value in the refinancing of the loan or the continuing American ownership of the club.

“They have constantly held back the football club in terms of developing the stadium.

“If RBS refused to refinance, it would force the owners to come up with a viable exit strategy.

“We would urge the bank to rethink.”

Mr Kilfoyle said: “This will still not provide the stadium and the regeneration for the people of Anfield. I have done all I can do in terms of raising awareness.

“What the bank are effectively saying then is that they are happy that they are going to get the interest, but that will do nothing which is about the basic issue of the stadium.

“I would expect banks, particularly in the present climate, to be more responsible than they have been to date. This does not augur well, and lets down the people of Liverpool.”