What happened: FC Barcelona has confirmed it sent formal requests to La Liga, the RFEF, and the CTA seeking disciplinary action against Real Madrid president Perez. The move comes in response to a letter Madrid sent to UEFA regarding the ongoing Negreira case investigation.

Why it matters: The request marks a major escalation in the administrative battle between Spain's two biggest clubs. Barcelona formally asks RFEF, La Liga and CTA to act against Florentino Perez as tensions rise over allegations of systemic refereeing corruption.

What to watch: Spanish football governing bodies are expected to review the formal complaint, while a response from UEFA regarding Real Madrid's initial letter remains pending.