Spanish clubs Real Madrid and Atletico Madrid have denied reports that Fifa is set to impose a transfer ban on them for breaching rules on signing of players aged under 18.
A report by Spanish media outlet Cadena Ser claimed Real and Atletico would be banned from signing players for the next two transfer windows.
Real said the report was "completely false", while Atletico said Fifa had not contacted them about any breach.
Fifa said it could not comment.
A spokesperson for football's global governing body told BBC Sport it was not in a position to provide any information on ongoing proceedings.
An Atletico spokesperson said the club had "absolute conviction" they have acted correctly, having conducted all transfers "with the approval of the Spanish Football Federation".
Barcelona were given a 14-month transfer ban in April 2014 after breaking rules on signing players from overseas aged under 18.
The Spanish Football Federation was also sanctioned by Fifa for the same breaches, with Barcelona later failing with an appeal to the Court of Arbitration for Sport.