COLOGNE, GERMANY - OCTOBER 18: Borussia Dortmund's Ilkay Guendogan is back on the field after a very long absence during the Bundesliga match between 1. FC Koeln and Borussia Dortmund at RheinEnergieStadion on October 18, 2014 in Cologne, Germany.  (Photo by Alexandre Simoes/Borussia Dortmund via Getty Images)