Dortmund's Turkish headcoach Nuri Sahin arrives to the stadium prior the German first division Bundesliga football match between 1 FSV Mainz 05 and Borussia Dortmund. AFP PHOTO

Borussia Dortmund have fired struggling head coach Nuri Sahin after Tuesday's 2-1 Champions League loss at Bologna, saying on Wednesday they had "lost faith" in the young manager.

Dortmund were beaten