Answer
Benjamin is the middle name of Marcell Jansen. Jansen is a former German professional footballer who played as a left-back or left midfielder. He made his professional debut for Borussia Mönchengladbach in 2004 and went on to play for Bayern Munich, Hamburger SV, and VfL Wolfsburg. Jansen also represented the German national team, earning 45 caps and scoring four goals.