BERLIN, GERMANY - DECEMBER 21: Referee Peter Sippel gestures during the Bundesliga match between Hertha BSC and 1899 Hoffenheim at Olympiastadion on December 21, 2014 in Berlin, Germany. (Photo by Boris Streubel/Bongarts/Getty Images)
BERLIN, GERMANY - DECEMBER 21: Referee Peter Sippel gestures during the Bundesliga match between Hertha BSC and 1899 Hoffenheim at Olympiastadion on December 21, 2014 in Berlin, Germany. (Photo by Boris Streubel/Bongarts/Getty Images)