1. Fußballclub Union Berlin e. V., commonly known as Union Berlin, is a professional German football club based in Köpenick, Berlin. The club's origins can be traced to 1906, when its predecessor FC Olympia Oberschöneweide was founded.
Serhou Guirassy scores four goals as Borussia Dortmund ends a five-game home winless streak in the Bundesliga.
