Tennis ball protest: Dortmund fans angry Stuttgart are charging £15 a ticket (Videos) Borussia Dortmund fans protest ticket prices at Stuttgart by throwing .
Borussia Dortmund Fans Flood the pitch with tennis balls vs Stuttgart Dortmund Fans Throwing Tennis Ball • VFB Stuttgart vs Borussia Dortmund 1-2 DFB Pokal .
Borussia Dortmund fans staged their own protest over ticket prices Borussia Dortmund fans bombard pitch with tennis balls in ticket price protest during German .
Dortmund fans tennis ball protest over ticket prices 2016 Borussia Dortmund fans threw tennis balls over the pitch tonight in protest over ticket price. Dortmund .