DORTMUND, GERMANY - OCTOBER 26: Fans of Dortmund during DFB Cup second round match between Borussia Dortmund and 1. FC Union Berlin at Signal Iduna Park on October 26, 2016 in Dortmund, Germany. (Photo by Maja Hitij/Bongarts/Getty Images)
DORTMUND, GERMANY - OCTOBER 26: Fans of Dortmund during DFB Cup second round match between Borussia Dortmund and 1. FC Union Berlin at Signal Iduna Park on October 26, 2016 in Dortmund, Germany. (Photo by Maja Hitij/Bongarts/Getty Images)