DORTMUND, GERMANY - OCTOBER 14: Referee Patrick Ittrich (R) shows red card to Valentin Stocker (L) of Hertha BSC Berlin during the Bundesliga soccer match between Borussia Dortmund and Hertha BSC Berlin at the Signal Iduna Park in Dortmund, Germany on October 14, 2016. (Photo by Leon Kuegeler/Anadolu Agency/Getty Images)