The 2005-06 campaign delivered an unforgettable European debut for FSV Mainz as Karnevalsverein clinched a respectable 11th-place finish in the Bundesliga. This season was defined by their unexpected participation in the UEFA Cup via the Fair Play draw, where manager Jürgen Klopp steered the team through the qualifying rounds, only to fall to eventual champions Sevilla FC. Leading the charge on the domestic front was Michael Thurk, whose 12 goals proved vital in a campaign built on consolidation and a spirited run. It was a remarkable year that cemented the club's top-flight status and remains a defining chapter of their modern history.