Inter Miami fell to the Seattle Sounders in the 2025 Leagues Cup final with a crushing 3-0 scoreline — a lopsided defeat in a final that has been rare throughout Lionel Messi’s storied career. Messi, who owns the most decorated résumé in soccer history, now faces the question: what is the worst defeat of his career?

The answer can be approached from two perspectives: the margin of defeat and the emotional impact. The heaviest loss Messi has ever suffered in a final came in the 2007 Copa America, when Argentina were beaten 3-0 by Brazil. That remains the widest margin in a final across his international career.

Yet many argue that the most painful and defining loss came in the 2014 World Cup final in Brazil. Despite the narrow 1-0 scoreline, Argentina’s defeated in extra time to Germany r

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