Troubled Hoffenheim fear goalkeeper Tim Wiese will not return from a knee injury until January.
The former Germany international sustained the problem in the final training session before Sunday's defeat by Bayer Leverkusen, which kept the club in the Bundesliga relegation zone.
And Hoffenheim's problems have now increased after medical examinations identified damage which may not have healed before the end of the year.
A Hoffenheim spokesperson told Bild: "Tim Wiese is injured, the tests proved.
"Tim Wiese will be out for several weeks. He may not be back in action before January."