Peter Stoger suffered his first home defeat in charge of Borussia Dortmund as they were beaten 2-1 at home by Red Bull Salzburg.
Valon Berisha scored twice as away specialists Red Bull Salzburg upset Borussia Dortmund 2-1 in the first leg of their last-16 Europa League tie.
The Austrian side stretched their unbeaten record on the road in Europe to 10 matches, handing Dortmund coach Peter Stoger his first home defeat since taking charge in the process.
After being the better of the two sides in a scoreless first half, Salzburg struck first when Berisha converted a penalty following Omer Toprak's foul on Hwang Hee-chan.