Gerard Pique called for respect throughout Spain after representing Catalonia in a friendly against Venezuela.
Barcelona defender and former Spain international Pique played as Catalonia defeated South American visitors Venezuela 2-1 in Girona on Monday.
The 32-year-old came out of retirement, having ended his Spain career following the 2018 World Cup, to make his 10th appearance for Catalonia – whose fixture against Venezuela did not have official status as they are not recognised by FIFA or UEFA.
There were reports of anti-Spain chants during the match at Estadi Montilivi amid the ongoing tension following the Catalan independence referendum in 2017, which was deemed illegal by the Spanish government and led to violent clashes between police and voters.