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WOLFSBURG, GERMANY - DECEMBER 03: Salomon Kalou of Berlin celebrates after scoring his team's third goal during the Bundesliga match between VfL Wolfsburg and Hertha BSC at Volkswagen Arena on December 3, 2016 in Wolfsburg, Germany. (Photo by Ronny Hartmann/Bongarts/Getty Images)

WOLFSBURG, GERMANY - DECEMBER 03: Salomon Kalou of Berlin celebrates after scoring his team's third goal during the Bundesliga match between VfL Wolfsburg and Hertha BSC at Volkswagen Arena on December 3, 2016 in Wolfsburg, Germany. (Photo by Ronny Hartmann/Bongarts/Getty Images)

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HANOVER, GERMANY - NOVEMBER 06: Salomon Kalou of Berlin celebrates scoring his goal during the Bundesliga match between Hannover 96 and Hertha BSC at HDI-Arena on November 6, 2015 in Hanover, Germany. (Photo by Stuart Franklin/Bongarts/Getty Images)

HANOVER, GERMANY - NOVEMBER 06:  Salomon Kalou of Berlin celebrates scoring his goal during the Bundesliga match between Hannover 96 and Hertha BSC at HDI-Arena on November 6, 2015 in Hanover, Germany.  (Photo by Stuart Franklin/Bongarts/Getty Images)

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WOLFSBURG, GERMANY - DECEMBER 03: Salomon Kalou (C) of Berlin celebrates after scoring his team's third goal during the Bundesliga match between VfL Wolfsburg and Hertha BSC at Volkswagen Arena on December 3, 2016 in Wolfsburg, Germany. (Photo by Ronny Hartmann/Bongarts/Getty Images)

WOLFSBURG, GERMANY - DECEMBER 03: Salomon Kalou (C) of Berlin celebrates after scoring his team's third goal during the Bundesliga match between VfL Wolfsburg and Hertha BSC at Volkswagen Arena on December 3, 2016 in Wolfsburg, Germany. (Photo by Ronny Hartmann/Bongarts/Getty Images)

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BREMEN, GERMANY - JANUARY 30: Salomon Kalou of Berlin celebrates scoring the third goal during the Bundesliga match between Werder Bremen and Hertha BSC at Weserstadion on January 30, 2016 in Bremen, Germany. (Photo by Stuart Franklin/Bongarts/Getty Images)

BREMEN, GERMANY - JANUARY 30:  Salomon Kalou of Berlin celebrates scoring the third goal during the Bundesliga match between Werder Bremen and Hertha BSC at Weserstadion on January 30, 2016 in Bremen, Germany.  (Photo by Stuart Franklin/Bongarts/Getty Images)

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HANOVER, GERMANY - NOVEMBER 06: Salomon Kalou of Berlin celebrates scoring his goal during the Bundesliga match between Hannover 96 and Hertha BSC at HDI-Arena on November 6, 2015 in Hanover, Germany. (Photo by Stuart Franklin/Bongarts/Getty Images)

HANOVER, GERMANY - NOVEMBER 06:  Salomon Kalou of Berlin celebrates scoring his goal during the Bundesliga match between Hannover 96 and Hertha BSC at HDI-Arena on November 6, 2015 in Hanover, Germany.  (Photo by Stuart Franklin/Bongarts/Getty Images)