Gregor Kobel's injury has proven more complex than initially anticipated. The Borussia Dortmund goalkeeper suffered a setback during the DFB-Pokal defeat against Wolfsburg last week.
Borussia Dortmund are headed into their DFB-Pokal match against Wolfsburg on Tuesday with a cloud of uncertainty hanging over the squad due to a growing injury list.
Saarbrucken's remarkable journey in the DFB-Pokal met a disappointing conclusion with a 2-0 defeat against Kaiserslautern in the semi-finals.
Borussia Dortmund coach Edin Terzic has given his thoughts ahead of the DFB-Pokal quarterfinal against Stuttgart to take place on Wednesday evening.
In a DFB-Pokal upset, Bayern Munich crashed out in the second round to third-tier Saarbrucken, losing 2-1 in a memorable clash.
Bayern Munich winger Serge Gnabry has been sidelined since sustaining a broken arm during their DFB-Pokal victory over SC Preußen Munster.