How could Catalonia line up? And what would Spain's national team look like?

Cesc Fabregas (L) and Gerard Pique are among a number of Spanish players born within the autonomous region of Catalonia

If Catalonia was to gain independence, how would their potential side line up? And what would Spain's national team look like?

The weekend's La Liga action was overshadowed by events off the pitch, with protests taking place in relation to the Catalonian independence referendum.

Catalan officials said that more than 750 people were injured in clashes between police and people trying to vote in the referendum, which the national government declared illegal.

Real Madrid fans hoisted Spanish flags in their match with Espanyol to protest against Catalan independence Real Madrid fans hoisted Spanish flags in their match with Espanyol to protest against Catalan independence

Barcelona played Sunday's match against Las Palmas behind closed doors, while Gerard Pique went on to say he would quit the Spanish national side if his support for Catalan's independence became a problem.

Pique is one of four players from Catalonia to feature in Spain's current 25-man squad for the upcoming World Cup Qualifiers alongside Jordi Alba, Marc Bartra and Sergio Busquets.

Chelsea midfielder Cesc Fabregas is also from the autonomous region, as is former Barcelona midfielder Xavi, who quit international duty in 2014 but made an appearance for Catalonia in a 3-3 friendly draw with Tunisia last December.

Here's a look at how Catalonia could potentially line up…

Meanwhile, here's a look at how Spain would line up if the Catalonia contingent were to become unavailable…