Sebastian Backer (born 5 September 1980) is a German footballer who plays as a defender.Born in Munich, Backer spent thirteen years with FC Bayern, ten in the club's youth system and three in the reserve team in the Regionalliga Süd. In the 2000–01 season, Ottmar Hitzfeld made Backer a member of the first-team squad, where he was given the number 29, but didn't make a first-team appearance, and continued to play for the reserves.In 2001, Backer signed for MSV Duisburg of the 2.