On Saturday, the Spanish football federation clarified that, unlike in La Liga, there were no restrictions on non-EU players for the Spanish Super Cup because the game was considered "not professional". Sevilla are upset about various matters, including: the match being played in Tangier, that it's a one-off match and most recently because of the RFEF confirming there's no limit as to how many non-EU players can be used.
Sevilla have threatened file a complaint ahead Sunday's Spanish Super Cup clash with Barcelona if the La Liga champions field more than three non-EU players.
It remains to be seen what's their final squad for the game.
Sevilla, meanwhile, return to the Super Cup for the first time since 2016 after finishing as finalists in the Copa del Rey. In their last statement for the 2018-2019 season, only three were due to be allowed, without exception.
"The club's legal department is studying the matter and should FC Barcelona submit a team with more than three non-EU players, it would present possible ground for withdrawal on account an improper line-up".
The last Super Cup meeting between the sides took place in 2016, where Barca won 5-0 on aggregate.
The victor of the match that will be staged in Tangier, Morocco, will be decided over one leg for the first time.
But the club could also call upon defender Marlon (Brazil), taking the total up to four.
NAIJ.com previously reported that Lionel Messi has been named Barcelona captain following Andres Iniesta's exit from Camp Nou. Forwards Lionel Messi and Luis Suarez have already acquired European Union citizenship while Brazilian Phlippe Coutinho has received a Portuguese citizenship through his wife.