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Hamann played for Liverpool for eight years, from 1999 to 2006. During his time at Anfield, he made over 200 appearances and won several major trophies, including the Champions League in 2005. Hamann was a versatile midfielder who was known for his passing ability, tackling, and set-piece delivery. He was a key member of the Liverpool team that enjoyed great success under manager Rafael Benitez.