article_snippet: The improving Germans, who have recovered after a dismal first half to the domestic season that saw his side anchored in last place as recently as last month in the Bundesliga, have kept a clean sheet in his side last three league games, including a 0-0 draw against Cologne on the weekend.
article_snippet: With Neven Subotic and Mats Hummels back fit in central defence, along with full backs Marcel Schmelzer and Lukasz Piszczek, Dortmund's defence has been as solid as it has been all season.
article_snippet: Dortmund boast a fine record at home in Europe having won 11 of their last 14 Champions League games at the Westfalenstadion.
article_snippet: Dortmund have won 11 of their last 14 home ties in the Champions League at the Westfalenstadion .
highlights_snippet: Klopp's side have kept a clean sheet in Klopp's side last three league games .
  
highlights_snippet: The Black and Yellows have improved since the return of Mats Hummels .