Spain’s top flight has filed a complaint to UEFA in which they accuse Paris Saint-Germain and Manchester City of Financial Fair Play violations.
And livid La Liga has announced it is ready to take "further legal action to the European Union, France and Switzerland" as it believes the two European superclubs are constantly breaking the rules.
LaLiga revealed it lodged the complaint against Man City to European football’s governing body in April before filing the one against PSG last week.
The league added it understands "these clubs are continually breaching the current regulations" of financial fair play.
LaLiga president Javier Tebas revealed last month they would take legal action against PSG after Kylian Mbappe snubbed a move to Real Madrid at the 11th hour and renewed his contract with PSG until 2025.
LaLiga reacted angrily to Mbappe's contract extension, claiming PSG's new offer to Mbappe "attacks the economic stability" of European football.
At the time, it said: "It is scandalous that a club like PSG, which last season reported losses of more than 220 million euros ($232.32 million) after accumulating losses of more than 700 million euros in prior seasons ... with a squad cost around 650 million for this season, can close such an agreement."
