Atletico Madrid forward Joao Felix was sent off as the LaLiga champions were held to a 0-0 draw at home to Athletic Bilbao on Saturday.
LaLiga said Barcelona and Real Madrid want to halt the growth of Spanish clubs after they challenged the league's deal with CVC Capital Partners.
Memphis Depay scored a lovely goal as Barcelona came from behind to draw with Athletic Bilbao in their second match of the new LaLiga campaign.
Liverpool suffered an injury scare to defender Andy Robertson in their 1-1 friendly draw against Athletic Bilbao on Sunday.
Real Madrid kept their La Liga title hopes alive with a 1-0 victory at Athletic Bilbao on Sunday.
Sevilla conceded a 90th-minute goal to fall to a 1-0 defeat at home to Athletic Bilbao on Monday, delivering a blow to their La Liga title hopes.
Athletic Bilbao brought the Williams brothers, Inaki and Nico, off the bench in Wednesday's 2-2 draw with Real Valladolid in La Liga.
La Liga leaders Atletico Madrid's title bid was de-railed again as they were beaten 2-1 at Athletic Bilbao on Sunday.
Lionel Messi's brace helped Barcelona claim the Copa del Rey title with a win over Athletic Bilbao in the final on Saturday.
The emotion of April 3's all-Basque Copa del Rey final overwhelmed Athletic Bilbao. Now they must dust themselves off to contest the 2021 edition.