After a quietish opening 20 minutes, with Union edging things in terms of possession, the visitors broke the deadlock midway through the half when Sören Brandy rose to power home Torsten Mattuschka's corner. Two minutes later the men from Berlin doubled their advantage as provider Mattuschka turned executioner, rifling home Baris Özbek's pass after Dynamo had sloppily given away possession.
Özbek was in action at his own end soon after, clearing the lines with a spectacular diving header that came off the underside of the Union bar. That was one of three great opportunities for Dynamo to get a foothold back in the contest but instead, Özbek and Benjamin Köhler teed up Damir Kreilach for another thumping finish on the break to put Union well in command.
Two minutes into the second 45, Dresden found themselves a man down for good measure as Cheikh Gueye saw a straight red card for a two-footed challenge on Özbek. Now, at the latest, the task was looking insurmountable for the men from the Saxony capital, although Adam Susac's 73rd-minute goal did gave them a brief flicker of hope- but no more than that.