Youth coach Mike Tullberg will take charge against Werder Bremen on Saturday in the Bundesliga while Dortmund searches for Sahin's long-term replacement. Reports in Germany identified the favorite as ex-Bayern Munich and Monaco coach Niko Kovac but he told Austrian TV on Wednesday, “No one has spoken to me.”

The manager is taking the brunt of the criticism for a poor season but issues off the pitch are as significant as those on it

Borussia Dortmund coach Nuri Sahin said he still felt the trust from his players but would talk to club bosses after Tuesday's shock 2-1 loss to Bologna in the Champions League that stretched their losing run to four games across all competitions.