Personnel sors threaten to force Hertha BSC against the Derby against the 1st FC Union.
On Wednesday, defender Peter Pekarik had to stop training.
The 35-year-old Slovake violated with a duel with Marc Oliver Kempf.
With pain-distorted face, Pekarik was first treated, his left ankle was bandaged.
Trainer Felix Magath could thus be missing another defender in the capital duel of the Football Bundesliga on this Saturday (18.30 pm / Sky) in the Olympic Stadium.
Man decking Niklas strongly pauses because of a bone extension in the ankle joint.
In addition, Stammkeeper Alexander Schwolow falls out with a tendon injury on the thigh for the time being.