My thoughts are that as the FA have said that the contract was illegal then we are not covered by insurance so can"t claim.
FIFA will find in Nantes favour & we will have to pay them with FIFA stating that the problem is between us & our insurers/FA.
Our insurers will say he wasn"t our player as the FA have stated the contract was illegal so we can"t claim & we will be left £15 million out of pocket.
If we could have claimed then surely we would have done that by now & paid the fee to Nantes ?