Daniel Farke is concerned with Ben Godfrey's injury suffered during Sunday's 2-2 draw with Arminia Bielefeld.
The young centre-back left the stadium in crutches after injuring his ankle.
"I am really concerned about Ben Godfrey. He is in a lot of pain. He leaves the stadium on crutches and tomorrow we have a scan," said Farke.
"I am bit concerned. Louis Thompson has a hamstring injury. We have to wait how long he will be out."
