UEFA have confirmed receipt of a substantial dossier from Real Madrid relating to the long-running Negreira case, reigniting scrutiny of historic payments made by Barcelona to a former refereeing official.

Real Madrid issued a statement on Thursday confirming that European football's governing body had received extensive documentation concerning roughly €8.4 million paid by Barcelona to Jose Maria Enriquez Negreira between 2001 and 2018.

The Spanish federation's former referees' committee vice-president received the funds across nearly two decades.

The capital club described the evidence submitted as relating to matters of extraordinary gravity, directly affecting competition integrity and confidence in the refereeing system.

Madrid pressed UEFA to progress the investigation with urgency through to a full conclusion, citing the seriousness of the verified facts.

Real Madrid had first signalled in June their intention to supply fresh material in pursuit of reopening the probe into their rivals, with reports suggesting the submitted file runs to around 50,000 pages.

UEFA's ethics and disciplinary inspectors are now expected to assess the latest documents as part of their existing review.

UEFA president Aleksander Ceferin had earlier described the situation surrounding the payments as among the most serious he had encountered in football, while noting any competitive consequences under LaLiga rules were time-barred.

He added that separate civil proceedings remain ongoing at Spain's prosecutor's office.

Barcelona moved quickly to push back on suggestions that UEFA had launched a new case.

The Catalan club maintained that the governing body had merely acknowledged receipt of Real Madrid's documentation, insisting no fresh or reopened disciplinary file had been announced.

According to Barcelona, proceedings originally began in 2023 following the appointment of two investigators, and have never formally closed, meaning there is nothing to reactivate. The club stated it has complied with every request made of it throughout that process.

Barcelona further noted they had received no new requests from UEFA, nor had Real Madrid's complaint and supporting dossier been forwarded to them directly.

The club said it would respond appropriately once, and if, that documentation arrives.

The Catalans reiterated their full cooperation with UEFA and Spanish authorities, adding that the matter remains tied to the outcome of ongoing criminal proceedings in Spain.

They have continued obtaining UEFA licences and competing in European competition without objection throughout the investigation.