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MOENCHENGLADBACH, GERMANY - DECEMBER 20: Granit Xhaka of Arsenal is presented to the fans prior to the Bundesliga match between Borussia Moenchengladbach and VfL Wolfsburg at Borussia-Park on December 20, 2016 in Moenchengladbach, Germany. (Photo by Maja Hitij/Bongarts/Getty Images)

MOENCHENGLADBACH, GERMANY - DECEMBER 20:  Granit Xhaka of Arsenal is presented to the fans prior to the Bundesliga match between Borussia Moenchengladbach and VfL Wolfsburg at Borussia-Park on December 20, 2016 in Moenchengladbach, Germany.  (Photo by Maja Hitij/Bongarts/Getty Images)

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MOENCHENGLADBACH, GERMANY - DECEMBER 20: Granit Xhaka of Arsenal acknowledges the fans prior to the Bundesliga match between Borussia Moenchengladbach and VfL Wolfsburg at Borussia-Park on December 20, 2016 in Moenchengladbach, Germany. (Photo by Maja Hitij/Bongarts/Getty Images)

MOENCHENGLADBACH, GERMANY - DECEMBER 20: Granit Xhaka of Arsenal acknowledges the fans prior to the Bundesliga match between Borussia Moenchengladbach and VfL Wolfsburg at Borussia-Park on December 20, 2016 in Moenchengladbach, Germany.  (Photo by Maja Hitij/Bongarts/Getty Images)

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MOENCHENGLADBACH, GERMANY - DECEMBER 20: A general view outside the ground prior to the Bundesliga match between Borussia Moenchengladbach and VfL Wolfsburg at Borussia-Park on December 20, 2016 in Moenchengladbach, Germany. (Photo by Maja Hitij/Bongarts/Getty Images)

MOENCHENGLADBACH, GERMANY - DECEMBER 20: A general view outside the ground prior to the Bundesliga match between Borussia Moenchengladbach and VfL Wolfsburg at Borussia-Park on December 20, 2016 in Moenchengladbach, Germany.  (Photo by Maja Hitij/Bongarts/Getty Images)