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Marcell Jansen made 242 appearances in the Bundesliga, Germany's top-tier football league. He played for Borussia Mönchengladbach, Hamburger SV, and Bayern Munich during his career. Jansen was a versatile defender who could play as a left-back or a center-back. He was known for his athleticism, tackling ability, and crossing skills. Jansen also represented the German national team, earning 45 caps and scoring 4 goals.