COLOGNE, GERMANY - DECEMBER 19: Ilkay Guendogan of Borussia Dortmund in action during the Bundesliga match between 1. FC Koeln and Borussia Dortmund at RheinEnergieStadion on December 19, 2015 in Cologne, Germany. (Photo by Alexandre Simoes/Borussia Dortmund via Getty Images)
