Barcelona have agreed to sell their TV rights for the 2015-16 season to Telefonica in a deal worth a reported €140 million.
The agreement could be the last time the Catalan club gets to deal individually with a broadcast partner.
In the Premier League, a collectively agreed scheme means even teams finishing far down the table are likely to receive over €100 million a season from the broadcasters.
This contrasts with a current situation in which smaller La Liga smaller clubs receive 18 million euros a year, although that could change should the Spanish government introduce long-planned legislation mandating collective sale from 2016-17.
El Pais reported that Barca would again receive €140 million for their audio-visual rights under the one-season deal with Telefonica, while also getting an additional €40 million in sponsorship agreements.
A club statement confirmed that a deal had been done, but did not mention any figures.
"The FC Barcelona board of directors... have agreed the cessation of their audiovisual rights to Telefonica de Contenidos for the season 2015-16.
"This agreement, that is strategic for our organisation, is the result of a long period of contact and negotiations with operators from all over the world."
The news came as a shock to Mediapro, who have managed Barca's rights for the last seven seasons and also partners a majority of La Liga clubs including Real Madrid.
The Catalan company's president Jaume Roures, a close ally of La Liga president Javier Tebas, told 8TV in quotes reported by Mundo Deportivo that Barca had acted disloyally, and suggested the decision had been influenced by internal politics at the Camp Nou.
"Our offer was better, in money and international expansion," he said. "If there were no elections coming maybe it would have been different."
Telefonica has also signed up Espanyol, Celta Vigo and Real Sociedad for next season, leading to speculation that they could bid for the league's collective rights in future.
Government legislation to mandate collective selling by the league's 20 clubs has yet to be signed into law.
Atletico Madrid CEO Miguel Angel Gil Marin last week called on officials to make progress on the issue.