LaLiga chief Javier Tebas has accused those who want to reignite the Super League of "lying more than (Vladimir) Putin".
The breakaway competition, involving 12 teams, six of whom were from the Premier League, was created and quickly binned last year.
Huge fan backlash saw clubs back out but there are now reports suggesting that Barcelona, Real Madrid and Juventus are hoping to relaunch the idea imminently.