Union's Kevin Vogt ended a 10-year Bundesliga goal drought after converting a 26th-minute penalty. Vogt's previous goal was scored on Oct. 18, 2014, making it a record 275 Bundesliga matches between goals for an outfield player.

Dortmund showed none of the aggression they showed in the win over the Scots in the Champions League on Tuesday and before halftime they conceded another with Yorbe Vertessen's low strike from the edge of the box.

Julian Ryerson pulled a goal back for the visitors just past the hour but they could not find an equaliser despite late pressure. Dortmund dropped to seventh place in the standings on 10 points.

Results and fixtures for the Bundesliga on Saturday :

 Werder Bremen     0-1  Freiburg           

 Union Berlin      2-1  Borussia Dortmund  

 Bochum            1-3  Wolfsburg      

 Bayer Leverkusen  2-2  Holstein Kiel