Portsmouth owner Balu Chainrai revealed to Special Report that the club is owed overdue money by a number of clubs.
Chainrai spoke out a year after Pompey became the first Premier League club to go into administration.
He told Monday's show that the club is struggling to recoup money from a number of sources.
It is believed that Genoa have yet to pay Portsmouth a £1m instalment for Kevin Prince Boateng that was due five weeks ago.
"There are a few clubs, a few foreign clubs, and we are in dispute with a couple of English clubs that are more powerful clubs than us," Chainrai told Special Report, "but of course it is under control by our management. They are trying their best to deal with it.
"It is outstanding football debts and it is disputes of payments. If you went into the details of these disputes you would also feel sorry for Portsmouth.
"When we owe money to clubs we have to pay up - there is no question about it. We are threatened, we are held at ransom.
"But when we have to collect money from similar clubs we never get the money. There is always a loophole against us being paid."
Former Portsmouth administrator Andrew Andronikou believes Portsmouth's past plight and present difficulties has at least helped other clubs avoid the same fate but he doubts Pompey will be the last team to fall into administration.
"A number of clubs have learnt," he said. "I have spoken to a number of chairmen and chief executives from other Premiership clubs, Championship clubs and the first division so they've all taken note because no-one wants to be in the position of Portsmouth again.
"Invariably lessons have been learnt and I would imagine that policies have now been implemented at various clubs to ensure that they cut their cloth occasionally and don't find themselves in this position again.
"Invariably, unfortunately, there will be but hopefully not in the state that Portsmouth found itself in."
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