On 20 April, a Spanish commercial court based in Madrid with territorial
jurisdiction published a medida cautelarísima (English: very urgent precautionary measure) with legal value and
executive into the entire European Union through the
2007 Lugano Convention,
[138] ruling that Swiss-based UEFA and FIFA, any other associated football body, and/or any league council directly or indirectly associated with these cannot publish press notes and/or interviews against the Super League project and its founding members, cannot block the launch of the Super League, and cannot sanction any of its founding clubs, its managers personnel, and its footballers,
[139] based on articles 45, 49, 56, and 63 of the Treaty on the Functioning of the European Union (TFEU),
[75][140] until the court has fully considered the case.
[141][142] The Super League believed that some of the rules its founding clubs are subject to were not legally sound, and they planned to test its efficacy in the European courts.
[21]
On 13 May, the Spanish commercial court referred a cuestión preliminar (English: preliminary question) to
the CJEU on whether FIFA and UEFA have violated articles 101 and 102 of the TFEU,[143] denouncing UEFA's monopoly position as the solely governing, disciplinary institution and unique clubs' incomedistributor, a triple charge referred to as illegal according the European Union competition law. The court also denounced UEFA's abuse of
dominant position by opposing the Super League project, such as using
coercion to press the founding clubs to abandon the project in favour to UEFA, publishing sanctions against nine of the founding clubs (Arsenal, Atlético Madrid, Chelsea, Inter Milan, Liverpool, Manchester City, Manchester United, Milan, and Tottenham Hotspur), and
threatening the exclusion from all
UEFA competitions for up to two years to the three still active clubs (Barcelona, Juventus, and Real Madrid) based in a potential violation of the articles 49 and 51 of UEFA's statutes,
[144] which are objected by the Super League as monopolistic because they give UEFA exclusive control in European football.
[144] By imposing sanctions, UEFA ignored the
injunctionpreviously filed by the Spanish court almost a month before, resulting in the case being taken to the CJEU.
[145][143] On 7
June, the Swiss Federal Department of Justice and Police notified the Spanish precautionary measure to both governing bodies, ruling them to not execute sanctions against Barcelona, Juventus, and Real Madrid.[146]