Chelsea is facing their first big test at the FIFA Club World Cup 2025, going up against Flamengo, one of South America's powerhouses and a historic Brazilian side. It’s a head-to-head battle for the top spot in Group D, with both teams chasing a second win that would bring them closer to the Round of 16. Chelsea is coming off a 2-0 victory over LAFC, while Flamengo delivered the same 2-0 result against Espérance de Tunis.