Cardiff City could launch a negligence claim over the Emiliano Sala plane disaster as the club face a financial loss of around £14 million even after insurance payouts.
Senior figures at the club are increasingly concerned about the decision to fly their record signing across the English Channel in a single-engined plane built in 1984 piloted by a part-time gas engineer.
Cardiff are now considering their legal position as they face a three-year contract bill estimated by accountants at £30 million, including a £2.5 million agents' fee. Accident insurance is likely to cover only half the forecasted loss. One source said payments from Cardiff to Nantes had been frozen until officials had established the facts from the crash.
The club said: "Cardiff has made its position very clear that it had nothing to do with the arrangements of the flight, and now new information is coming in every day as we are continuing to investigate the chain of events and the cause of the accident. We are looking at the potential possibility of negligence that may have caused the accident."
The flight was booked by Sala's agent and Mark McKay, who was an intermediary in the deal. Emergency services believe the plane crashed into the sea on Monday after taking off from Nantes in north-west France.