According to Dortmund's official announcement, BVB's youngster midfielder will be out of the squad in the following several months due to collateral ligament iujury.
BVB Official Announcement:
Midfielder Felix Nmecha suffered a lateral collateral ligament injury in his knee during the league match against Hamburger SV, and will be out for several weeks.
Due to his injury, the 25-year-old will also not be available to the German national team for the upcoming international matches against Switzerland and Ghana.
In addition to Nmecha, the two BVB defenders Nico Schlotterbeck and Waldemar Anton have been nominated for the DFB team.