Footballers in Spain have expressed their displeasure over the match to be played in the United States.
The footballers have not ruled out strike action over a plan to stage a top-flight league match in the United States, says the players' union.
Real Madrid captain Sergio Ramos and Barcelona vice-captain Sergio Busquets were among the high-profile players to attend a meeting on Wednesday to discuss their "concern" over the issue.
The players' union - the AFE - says its members were not consulted by La Liga.
Aganzo said: "The problem is the lack of common sense, a schedule where only the export of soccer benefits - nobody counts on the fans.
"We need to fix it with the bosses. The captains are Outraged, they're against it, they are unanimous.
"It does not make sense. We are talking about an agreement that has a validity of 15 years without consulting the players."
On the possibility of strike action, he added: "We will try not to reach that extreme but we are willing to go to the end if necessary."
Aganzo said the players would meet again in September.
After the meeting the league said in a statement: "La Liga will meet with AFE in the appropriate forum to discuss the plans to play a match outside of Spain."
La Liga has however agreed on a 15-year Deal with relevant US Media Company on Friday.