Klaus-Dieter Sieloff

Klaus-Dieter Sieloff (27 February 1942 – 13 December 2011) was a German footballer who played as a defender. He spent 11 seasons in the Bundesliga with VfB Stuttgart and Borussia Mönchengladbach. He played in two World Cup Qualifying matches in 1966.

Early life During his youth in Kiel, Sieloff aimed to become a boxer, having stood in the ring 25 times by the age of 14. When his family moved to Rottweil near Stuttgart and after visiting football games of VfB Stuttgart at Neckarstadion, Sieloff's interest however shifted from boxing to football. In October 1960, he played his first game for VfB Stuttgart in the Oberliga Süd.

For Borussia Mönchengladbach, Sieloff played until 1974 when he moved to Alemannia Aachen, where he remained until 1976. He ended his career in 1977, playing one season for TSG Backnang. After his career, Sieloff became chief of the Mercedes-Benz company-facilitated sports activities group. He died in December 2011.

Honours Borussia Mönchengladbach Bundesliga: 1969–70, 1970–71 DFB-Pokal: 1972–73 UEFA Cup finalist: 1972–73

West Germany FIFA World Cup: runner-up 1966; third place 1970