DORTMUND, Germany (Reuters) -Ten-man Borussia Dortmund slumped to a 2-1 defeat to visitors VfB Stuttgart on Saturday in a disappointing debut for new coach Niko Kovac that dropped his team further away from the Champions League qualification spots.
Kovac took over last week after Dortmund, who face Sporting in a Champions League playoff next week, sacked coach Nuri Sahin in late January following a four-game losing run across all competitions.
