500
What club team had the most players in the 2010 World Cup?
Barcelona with 14 players. Valdés, Piqué, Puyol, Xavi, Iniesta, Busquets, Pedro, Villa (all Spain), Alves (Brazil), Márquez (Mexico), Messi (Argentina), Henry and Abidal (France) and Touré (Côte d’Ivoire)