Real Madrid and Atlético Madrid have been investigated for similar irregularities that led to Barcelona’s ban on registering new players, according to the suspended Fifa president Sepp Blatter.

Blatter said in an interview with the Spanish newspaper Mundo Deportivo that Fifa’s disciplinary committee has already concluded the investigations, but he does not know their outcome.

“Fifa’s disciplinary committee has opened separate proceedings on Real Madrid and Atlético Madrid for the same infractions committed by FC Barcelona,” Blatter said. “They have been concluded, but I don’t know what the sanctions are because they are independent commissions and I’m suspended, I can’t even walk inside Fifa.

“But if Barcelona was penalised for violating Fifa’s regulations, and the Madrid clubs committed identical irregularities, it would be normal to punish them the same way.”

Barcelona were given a one-year ban on signing new players after Fifa concluded it had violated rules regulating the transfer of underage players.

Fifa said on Wednesday that it’s “not in a position to comment on any proceedings that are ongoing … No further information can be provided for the time being.”

Blatter also said that “maybe Barça made a mistake starting a war against Fifa. It would have been better to open a dialogue, it’s always a better path in football.”