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BERLIN, GERMANY - APRIL 18: Valentin Stocker of Berlin runs with the ball during the Bundesliga match between Hertha BSC and 1. FC Koeln at Olympiastadion on April 18, 2015 in Berlin, Germany. (Photo by Boris Streubel/Bongarts/Getty Images)

BERLIN, GERMANY - APRIL 18:  Valentin Stocker of Berlin runs with the ball during the Bundesliga match between Hertha BSC and 1. FC Koeln at Olympiastadion on April 18, 2015 in Berlin, Germany.  (Photo by Boris Streubel/Bongarts/Getty Images)