Barcelona's attempts to re-sign Sevilla midfielder Denis Suarez are being blocked by the Spanish FA.
Marca says Barcelona loaned the youngster out to Sevilla for two seasons with the option to bring him back at the end of the first.
The current sticking point arises from the fact that, while Barça see this recall as bringing the loan deal to an early end rather than a transfer, the RFEF feels differently.
The RFEF is following the FIFA ban to the letter, which stipulates "the prohibition of domestic and international transfers for two complete and consecutive transfer periods", and it counts the arrival of Denis Suárez as a transfer.