SportsThe mother of all derbies: Dortmund vs. Schalke06:56This browser does not support the video element.Sports11/24/2017November 24, 2017When Dortmund meet Schalke, the Ruhrpott goes into a state of emergency. You’re either black and yellow or blue and white. Despite everything the clubs have in common. What is it that makes this clash so special?Copy linkAdvertisement
