LaLiga president Javier Tebas has questioned Manchester City's swoop for Borussia Dortmund striker Erling Haaland.
Tebas has raided Financial Fair Play laws when discussing City's deal.
He said, "We will see how this operation was carried out, with what commissions. These strange things are done by City, PSG or even Chelsea at the time."
Tebas also says a complaint will be filed against PSG after the re-signing of Kylian Mbappe.
He stated: "PSG, with more losses and payrolls than Real Madrid or Barça, extends Mbappé with sums which... It is impossible if there is no cheating on sponsorships or contributions in capital at a higher level than that established by UEFA.
"The president of PSG can do what he wants because UEFA is financially dependent on him? It is not possible. It's not a French problem, it's a problem of the European football ecosystem. I spoke to other leagues, some will join us."
He added: “We will do it, whatever the president of the French league says. They already know me in Europe. Listen Nasser (Al Khelaifi), what you are doing is killing football. It is as dangerous as the Super League project. We, when we denounced the Neymar affair, we denounced two clubs, City and PSG. Both clubs have been sanctioned by UEFA. What happened? In a very odd decision, the two were pardoned by TAS. We have studied it and we will try not to let it happen again."
