La Liga’s hopes of holding a game in the US look unlikely after Fifa’s Council said it is opposed to the idea.
The Spanish top flight wants Girona’s home game against Barcelona to be held in Miami on 26 January.
But the move can not go ahead without the approval of the Spanish FA, which has consistently objected to the proposal, Fifa and two other bodies.
La Liga has told BBC Sport it will go to the Court of Arbitration for Sport if Fifa does block the move.
Football’s world governing body has not yet formally banned the proposal.
A La Liga statement read: “Should we receive official notification from Fifa that they prohibit the match, we will take the case to the Court of Arbitration for Sport urgently.”
One of the men behind the plan said earlier this month it may not happen.