Story highlights FC Barcelona fans honor terror attack victims

Barca was playing Real Betis in a league game

(CNN) It's normally a place of celebration. A place where FC Barcelona's fans passionately support their team.

But the mood Sunday was altogether more somber as the football club's supporters congregated at the Camp Nou stadium to watch Barca's first league game of the season against Real Betis.

Both teams and fans honored the victims of the Thursday van attack in Barcelona that left 13 people dead and 120 injured

The Barcelona football club, whose slogan is "more than a club" because of its defense of the Catalan culture and language, is one of Catalonia's most important institutions.

"Freedom of expression is what Catalonia is all about," Catalan artist Joan Miró once said, and that spirit was very much in evidence.

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