Bremen, Germany (SportsNetwork.com) - Borussia Dortmund fell back into the relegation zone on Saturday after sustaining a 2-1 defeat at fellow relegation strugglers Werder Bremen.
Davie Selke scored after three minutes for Bremen and Fin Bartels added a second goal in the 62nd, while the visitors could only pull one goal back through Mats Hummels in the 69th.
The result drops Dortmund into 17th place, two points from safety, while Bremen climbs off the bottom of the league with their fourth victory of the campaign.
It took less than three minutes for Bremen to seize the advantage as Selke was able to carve out space and curl a shot past diving goalkeeper Mitchell Langerak.
Selke was involved in the second goal as well as he dashed down the wing and delivered a pinpoint cross into the area that Bartels turned home from close range.
Bremen almost added a third goal with Selke sending another chance just wide before Hummels headed home a corner kick to bring Dortmund back into the match.
However, Shinji Kagawa squandered Dortmund's best chance by firing his effort well over the net, dooming Jurgen Klopp's side to a 10th defeat in 17 games.
Second-place Wolfsburg moved six points clear of third-place Bayer Leverkusen after securing a 2-1 home win against Cologne as Naldo netted the winning goal for Wolfsburg 12 minutes from time.
Monchengladbach missed out on a chance to move into the top three on Saturday as the team suffered a 2-1 defeat at Augsburg as Markus Feulner and Raul Bobadilla scored for the hosts to cancel out a third-minute penalty kick from Max Kruse.
Bayer Leverkusen is third after a 1-1 draw at home with Eintracht that saw Karim Bellarabi net the equalizer for Leverkusen in the 83rd minute, while Hamburg's match with Schalke and Stuttgart's fixture with Paderborn both ended in 0-0 draws.