La Liga has insisted it will not change the dates of fixtures in the opening three rounds of the 2019-20 season, despite a demand to do so from the Royal Spanish Football Federation (RFEF).
The RFEF released a statement on Friday confirming the competition judge had ruled football was only to be played on Saturday or Sunday in August and September.
As such, it demanded La Liga alter its calendar as it had not sought permission to play matches on Fridays and Mondays, with defending champion Barcelona initially scheduled to begin its campaign against Athletic Bilbao on August 16.
But La Liga refutes the decision, instead claiming to be the only organisation able to set the schedule for league fixtures.
"La Liga confirms that there is a judicial hearing indicated for August 7 with the objective of resolving this RFEF attack with caution to La Liga's powers and the value of the audiovisual rights of the associated clubs," a statement read, adding that fixture changes could affect signed contracts worth "more than" €2billion.
Should La Liga lose the case, Barca's clash with Bilbao will be put back to Saturday, August 17, along with Real Mallorca's meeting with Eibar, which was initially set for August 19. Real Betis' game against Real Valladolid will also been moved.
Atletico Madrid, Sevilla, Real Sociedad and others will also be impacted across the opening weekends if the August hearing rules in favour of RFEF.