Borussia Dortmund coach Peter Bosz arrived in Germany at the start of the season pledging attractive, attacking football but his time could run out as soon as Saturday if his side fail to beat bitter rivals Schalke 04 in the Ruhr valley derby.

Dutchman Bosz initially lived up to his reputation when Dortmund raced to six wins in their first seven league matches.

A quick passing game with even quicker counter-attacks sent Dortmund above champions Bayern Munich in the table.

But as soon as Bosz's team started to stutter, results suffered.

From first place only a few weeks ago, Dortmund have dropped to fifth, having lost four of their last five Bundesliga matches – along with their confidence – and their last victory was back in September.

Dortmund top scorer Pierre-Emerick Aubameyang has not netted in the Bundesliga since mid-October while the once solid backline is the very picture of inconsistency, with errors commonplace between defenders and keeper Roman Buerki.