In the midst of a four-game losing streak, Borussia Dortmund sacked Nuri Şahin on Wednesday, but the club's problems go much deeper than the manager.

Borussia Dortmund has fired coach Nuri Sahin, the German soccer club said on Wednesday after a shock loss to Bologna in the Champions League that stretched their losing run to four games across all competitions.

Dortmund sacks head coach Nuri Sahin after four straight losses, leaving the team 10th in the Bundesliga and out of the German Cup.