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Bayer Leverkusen was the final Bundesliga club that Sami Hyypiä played for before retiring. He joined the club in 2010 after a successful career with Liverpool, where he won numerous trophies, including the UEFA Champions League. Hyypiä made a significant contribution to Bayer Leverkusen's defense, helping them achieve a third-place finish in the Bundesliga during his first season.