The RFEF's Competition Committee has warned Barcelona they could be punished if they're late on to the field of play again, as was the case at Mallorca this weekend.
Carmen Pérez González, the president of the Committee, said that the delay in the Barça players coming out meant the game kicked off four minutes late. She added that the club are "obliged to follow and respect the strict timings in place for the start of matches."
The warning comes after the referee, Carlos del Cerro Grande, included Barça's lateness in the other incidents section of his match report.
Del Cerro wrote that "the game started four minutes late due to the visiting players only starting to leave the dressing room at 21.57 despite repeated warnings from the refereeing team. As a consequence of that, the players from both teams only made it out on to the pitch at 22.00."
In addition to warning Barça, the Committee fined Mallorca 301 euros for the pitch invader that was able to breach security and get onto the pitch in an attempt to take a selfie with Lionel Messi.
The match ended 4-0 to Barcelona, with Arturo Vidal, Martin Braithwaite, Jordi Alba and Lionel Messi on target at the Visit Mallorca Stadium.