FC Barcelona has a cheering interest in the match between Atlético de Madrid and Inter tonight. Specifically, they want Inter to win, or more precisely, they want Atlético to lose.
The reason is because only two clubs per country will be able to play in the expanded FIFA Club World Cup, and Real Madrid have already taken one of those slots.
The 2025 edition of the tournament will feature 32 teams from around the world, and each club will get a big bonus (reported to be 50 million dollars) for qualifying. Not to mention, there is prize money on offer, and the ability to gain exposure.