La Liga chief Javier Tebas has slammed proposals to form a European Super League among the continent's elite clubs, while warning such a plan could spell the end of the Spanish top flight.
The concept of a European Super League has been bouncing around the world of football for decades, with Real Madrid president Florentino Perez among those who has publicly discussed the possibility in the past.
And Tebas believes that the proposed league is merely the product of idle thinking amongst those in charge of Europe's biggest teams.
"The European Super League would be the end of La Liga and also of the Champions League," he told Goal.
"I define it harshly, so that everyone understands. The Superliga is the kind of project written up at a bar at five in the morning, a project of different club presidents".
The financial and commercial benefits are clear for those would be involved, but the Liga chief warned them to be wary.
"There are many arguments against the Superleague. At first it will look beautiful, but the Bayern Munich or Real Madrid fan has become great by winning titles, winning their national competitions, because history is like that," he added.
"Some teams in the Super League table will finish ninth or 10th. You think of a Real Madrid against Manchester United game and on paper it's a great match, but of course, one could be in 11th position and another in10th.
"Let's see how many fans are left in five years after that.
"The Champions League must exist, its model is perfect. The clubs win. But a European Super League model would hurt football and, in the long term, will hurt the big clubs too, because it will never provide the economic figures that the big clubs think it will."