Sokratis Papastathopoulos scored the goals as Peter Stoger made a successful start to life at Borussia Dortmund.
Borussia Dortmund started life under Peter Stoger with a 2-0 win at Mainz on Tuesday as they broke an eight-game winless run in the Bundesliga.
In his maiden match at the helm since replacing the sacked Peter Bosz, Stoger made an excellent start as second-half goals from Sokratis Papastathopoulos and Shinji Kagawa second half secured a first victory over top-flight opposition since September.
The Austrian, himself only dismissed by bottom-placed Cologne this month, was immediately appointed by BVB to lead a turnaround and received a glimpse of the work ahead during a laboured first half.