كتب : وكالات
Goals from Nuri Sahin and new signing Shinji Kagawa gave Jurgen Klopp's men their sixth point from three games.
Dortmund moved up to sixth place, three points behind leaders Hoffenheim, who maintained their perfect with a 2-0 over point-less Schalke on Friday.
Holders Bayern Munich were held to a goalless home draw by Werder Bremen.