The AFE said replica demonstrations would take place during other La Liga matches this weekend.
Real Madrid coach Xabi Alonso, whose team plays Getafe on Sunday, said: “We are against the (Miami) game. We think it distorts the competition.
“There was no unanimity or consultation for this to be played out on neutral ground. The protests are positive, and this feeling is positive.
“We think this could happen if there was unanimity, but that’s not the case.”
The AFE did not ask Barcelona and Villarreal players to participate in the protests to avoid this being “interpreted as a possible measure against any club”.
“Faced with the constant refusals and unrealistic proposals from La Liga, the Spanish Footballers’ Association categorically rejects a project that does not have the approval of the main players in our sport and demands that the employers’ association creates a negotiation table in which all information is shared and the exceptional characteristics of the project are analyzed, the needs and concerns of footballers are taken into account and the protection of their labor rights and compliance with current regulations are taken into account account. guaranteed.”
The BBC has contacted La Liga for comment.
The confirmation of the Miami match follows the decision by the Italian Football Federation (FIGC) to authorize a Serie A match between AC Milan and Como to be played in Perth, Australia, in February.
On Friday, Barcelona coach Hansi Flick said: “My players are not happy. I am not happy. But La Liga has decided that we will play this match.”
Real expressed their opposition when announcing the match, saying the consequences would be “very serious”, while UEFA “reluctantly” approved the decision.
This week, RFEF president Rafael Louzan said the move was “good for football”, while Barcelona president Joan Laporta said the match would “certainly be a great spectacle”.