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DORTMUND, GERMANY - NOVEMBER 28: Gonzalo Castro , Shinji Kagawa and Marco Reus of Borussia Dortmund is seen during the annual visit of Borussia Dortmund at the children's hospital on November 28, 2016 in Dortmund, Germany. (Photo by Alexandre Simoes/Borussia Dortmund/Getty Images)

DORTMUND, GERMANY - NOVEMBER 28:  Gonzalo Castro , Shinji Kagawa and Marco Reus of Borussia Dortmund is seen during the annual visit of Borussia Dortmund at the children's hospital on November 28, 2016 in Dortmund, Germany.  (Photo by Alexandre Simoes/Borussia Dortmund/Getty Images)