Niko Kovac will be the new coach of Borussia Dortmund as last season’s Champions League runner-up looks to rescue a troubled season.

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.

Newly-appointed Borussia Dortmund coach Niko Kovac said on Tuesday he would demand "dedication and passion" as he hopes to get the struggling German club back on track.Dortmund sacked previous coach Nuri Sahin in January,

Borussia Dortmund coach Niko Kovac said the first impression of his new club was "very positive" as he was officially presented on Tuesday. "The first impression is very positive. I'm delighted that my team and I are allowed to be here.

Borussia Dortmund's three-game run under interim coach Mike Tullberg with two wins and a draw across all competitions showed the team had the quality to turn their season around, new coach Niko Kovac said on Tuesday.