article_snippet: Ilkay Guendogan battles for the ball with Yuya Osako during the  Borussia Dortmund and Cologne game .
article_snippet: Jurgen Klopp's Borussia Dortmund's striker Marco Reus vies for the ball during the match against Cologne .
article_snippet: Kevin Kamp of Jurgen Klopp's Borussia Dortmund battles for the ball with Slawomir Peszko at at Signal Iduna Park .
article_snippet: Jurgen Klopp's Borussia Dortmund's head coach Juergen Klopp reacts during the German first division Bundesliga clash .
article_snippet: Jurgen Klopp's Borussia Dortmund’s inability to break down a stubborn Cologne defence was not helped when Henrikh Mkhitaryan suffered what looked to be a painful injury.
article_snippet: Henrikh Mkhitaryan was replaced by Jakub Blaszczykowski on the hour mark and is now a doubt for the Champions League clash with Juventus later this week.
highlights_snippet: Klopp's side face Juventus in the Champions League later this week .