A Belgian court has imposed an interim order blocking European football governing body Uefa from activating new Financial Fair Play (FFP) rules, reports BBC Sport.
The Court of First Instance referred a case brought by several claimants to the European Court of Justice (ECJ).
The case challenged plans to cut the deficit clubs are permitted from 45m euros (£32m) to 30m euros (£21.32m).
The claimants include football agent Daniel Striani and supporters of Manchester City and Paris St-Germain.
Uefa president Michel Platini has already said his organisation is planning to "ease" FFP regulations, changes which could be ratified at a meeting of its executive committee in Prague next week.
Those amendments may fall in line with the court's interim order, which will remain in place until the ECJ - the European Union's highest court - reaches a ruling.
