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HAMBURG, GERMANY - MARCH 20: Referee Christian Dingert shows Cleber Janderson Pereira Reis of Hamburger SV the yellow card during the match between Hamburger SV and Hertha BSC on March 20, 2015 in Hamburg, Germany. (Photo by City-Press via Getty Images)

HAMBURG, GERMANY - MARCH 20: Referee Christian Dingert shows Cleber Janderson Pereira Reis of Hamburger SV the yellow card during the match between Hamburger SV and Hertha BSC on March 20, 2015 in Hamburg, Germany. (Photo by City-Press via Getty Images)