Spanish Football Federation (RFEF) president Luis Rubiales has said he is going to ask La Liga president Javier Tebas in the coming days to make changes to the format of the league.
Rubiales wants fewer matches and matchdays, and has also suggested some games being played at neutral venues.
The RFEF president added they can also look at the prospect of playing some of the Spanish top-flight games abroad.
"You have to ask for respect, Tebas and I aren't going to think the same. Of course I'm open to looking at some agreements for football," Rubiales said, as quoted by Marca.
"In the coming days I'm going to ask Tebas to change the format of LaLiga. We've changed the format of many competitions.
"We are in a place where we can present a different format, more attractive, with fewer games and more free weeks in the calendar. Neutral venues, fewer matchdays... and of course we can look at playing a game abroad."
La Liga have, however, insisted they will not consider making any change to the league's format.
"LaLiga will not consider any change to the competition format, which has been a success in recent years," a statement from La Liga read.
"It would be irresponsible to make or even consider any modification.
"It would generate uncertainty for other sports and non-professional football, to which LaLiga contributes 125 million euros per season."