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Sotirios Kyrgiakos was a central defender, known for his strength, aerial ability, and leadership on the pitch. Throughout his career, he played for several clubs in Greece and abroad, including Panathinaikos, AEK Athens, Rangers, Liverpool, and Wolfsburg. Kyrgiakos made significant contributions to the defensive lines of these teams, often serving as a commanding presence in the back and helping to secure numerous victories and trophies.