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Rottach-Egern, Deutschland, 21.07.2016, Trainingslager, Borussia Moenchengladbach Fitness├╝bungen, feature (Photo by TF-Images/Getty Images)

Rottach-Egern, Deutschland, 21.07.2016, Trainingslager, Borussia Moenchengladbach Fitness├╝bungen, feature (Photo by TF-Images/Getty Images)

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MOENCHENGLADBACH, GERMANY - SEPTEMBER 29: Head coach Andre Schubert gives instructions to his players during a Borussia Moenchengladbach training session on the eve of the UEFA Champions League groupe D match against Manchester City at Borussia-Park on September 29, 2015 in Moenchengladbach, Germany. (Photo by Lars Baron/Bongarts/Getty Images)

MOENCHENGLADBACH, GERMANY - SEPTEMBER 29:  Head coach Andre Schubert gives instructions to his players during a Borussia Moenchengladbach training session on the eve of the UEFA Champions League groupe D match against Manchester City at Borussia-Park on September 29, 2015 in Moenchengladbach, Germany.  (Photo by Lars Baron/Bongarts/Getty Images)

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MOENCHENGLADBACH, GERMANY - NOVEMBER 24: Head coach Andre Schubert of Borussia Moenchengladbach looks on during a training session ahead of their Champions League Group D match against Sevilla FC at Borussia-Park on November 24, 2015 in Moenchengladbach, Germany. (Photo by Dennis Grombkowski/Bongarts/Getty Images)

MOENCHENGLADBACH, GERMANY - NOVEMBER 24:  Head coach Andre Schubert of Borussia Moenchengladbach looks on during a training session ahead of their Champions League Group D match against Sevilla FC at Borussia-Park on November 24, 2015 in Moenchengladbach, Germany.  (Photo by Dennis Grombkowski/Bongarts/Getty Images)

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MOENCHENGLADBACH, GERMANY - NOVEMBER 24: Borussia Moenchengladbach players practice during a training session ahead of their Champions League Group D match against Sevilla FC at Borussia-Park on November 24, 2015 in Moenchengladbach, Germany. (Photo by Dennis Grombkowski/Bongarts/Getty Images)

MOENCHENGLADBACH, GERMANY - NOVEMBER 24:  Borussia Moenchengladbach players practice during a training session ahead of their Champions League Group D match against Sevilla FC at Borussia-Park on November 24, 2015 in Moenchengladbach, Germany.  (Photo by Dennis Grombkowski/Bongarts/Getty Images)

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RHEDE, GERMANY - JULY 02: Raffael (l) and Nico Brandenburger of Borussia Moenchengladbach warm up prior the friendly match between VfL Rhede and Borussia Moenchengladbach at Besagroup Sportpark on July 2, 2016 in Rhede, Germany. (Photo by Maja Hitij/Bongarts/Getty Images)

RHEDE, GERMANY - JULY 02: Raffael (l) and Nico Brandenburger of Borussia Moenchengladbach warm up prior the friendly match between VfL Rhede and Borussia Moenchengladbach at Besagroup Sportpark on July 2, 2016 in Rhede, Germany. (Photo by Maja Hitij/Bongarts/Getty Images)