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DORTMUND, GERMANY - NOVEMBER 29: Mats Hummels of Borussia Dortmund looks on during the Bundesliga match between Borussia Dortmund and VfB Stuttgart at Signal Iduna Park on November 29, 2015 in Dortmund, Germany. (Photo by Dennis Grombkowski/Bongarts/Getty Images)

DORTMUND, GERMANY - NOVEMBER 29:  Mats Hummels of Borussia Dortmund looks on during the Bundesliga match between Borussia Dortmund and VfB Stuttgart at Signal Iduna Park on November 29, 2015 in Dortmund, Germany.  (Photo by Dennis Grombkowski/Bongarts/Getty Images)