http://www.businessinsider.com/barcelona-join-english-premiere-league-catalonia-independence-2017-9Quote:
Tensions are rising in northeast Spain as Catalonia fights to hold an independence vote. Now comes word from the region's sports minister that independence could have a huge impact on one of the world's most valuable professional teams FC Barcelona.
According to Gerard Figueras, Catalonia's sports minister, Bara would be free join another country's football league, including England's Premier League, if Catalonia gains its independence from Spain. This would also be true for the other two football clubs in the northeast Spanish region who currently play in Spain's La Liga, Espanyol and Girona.
"In the case of independence, Catalan teams in La Liga Barcelona, Espanyol and Girona will have to decide where they want to play: in the Spanish league or a neighbouring country like Italy, France or the Premier League," Figueras said, via The Independent.