Borussia Dortmund will have to make do without the services of winger Mario Gotze until January.
The 19-year-old aggravated a thigh muscle injury during Dortmund's 1-1 draw with Kaiserslautern at the weekend.
"Playing against Kaiserslautern, BVB midfielder Mario Gotze incurred a torn muscle in his [front] thigh," read a statement on the club's official website.
"Thus, the 19-year-old international player will be missing for the two remaining games this year [Freiburg in the Bundesliga, Dusseldorf in the DFB Pokal]."
The German league will enter into a winter break next weekend.
