Mexico's closed league goes to court

The case

Liga MX scrapped promotion and relegation five years ago, turning Mexico's top flight into an invite-only competition. For clubs in the Liga de Expansión MX, no matter how well they perform, there is no route up. That is the structure now being challenged at sport's highest court.

The five clubs filing the appeal have not been named publicly, per ESPN FC's reporting. What is confirmed is that CAS has accepted the case and will hear it — which is a procedural step, not a ruling. No timeline for the hearing has been set, and the outcome is entirely open.

What's actually at stake

If CAS were to find in favour of the appellants, the FMF and Liga MX could be compelled to reinstate a promotion and relegation system — reshaping the entire structure of Mexican football from the ground up. That would mean renegotiating broadcast deals, franchise agreements, and the financial model that Liga MX's current owners have built around a closed competition.

The closed-league model was sold partly on financial stability grounds: no club faces the economic cliff-edge of relegation, and investment is theoretically more attractive. The second-division clubs making this appeal are arguing, in effect, that sporting merit should still mean something.

The long road ahead

CAS proceedings move slowly, and there is no guarantee the appellants prevail. The FMF and Liga MX will mount a defence, and the legal arguments around sporting governance versus contractual structure are genuinely complex. Five unnamed second-division clubs against the Mexican football establishment — at sport's highest court — is not a fight anyone expected to see. It's also not one that ends quickly.

The clubs left outside the closed league never stopped wanting back in. Now they're making that case in Lausanne.