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A product of the renowned 1. FC Kaiserslautern academy, Marius also enjoyed spells in Germany with RB Leipzig and FC Schalke 04.
However, the 6ft 3in stopper’s most successful spell came in the Swiss Super League with FC Luzern, where he made 139 appearances and kept 33 clean sheets over a four-year period.
He was also part of the 2021 Swiss Cup-winning side, as Luzern defeated FC St. Gallen to lift the trophy for the first time in 29 years.
His consistently impressive performances in Switzerland earned him a return to the Bundesliga in 2023, when he joined VfL Wolfsburg, where he continued to compete at the highest level of the German game.
Marius signed a two-year deal with The Dons in July 2026.
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