Career
He had previously played in his country for Hamburger SV, SpVgg Unterhaching, VfB Stuttgart, Football Club Schalke 04, Kaiserslautern, TSG 1899 Hoffenheim and Alemannia Aachen. Seitz signed with Bulgarian Chernomorets Burgas for two years on 4 July 2009. He left the club on 1 June 2011 after his contract expired.