Borussia Dortmund will have to do without the services of Mats Hummels and Marcel Schmelzer for Saturday’s Bundesliga clash with Bayern Munich. Both BVB defenders returned injured from Germany’s friendly with England (1-0) at Wembley on Tuesday.

Mats Hummels suffered an osseous avulsion injury in the heel bone that will keep him sidelined for the rest of the first half of the season. The centre-back is expected to return to action by mid-January 2014, according to BVB team doctor Markus Braun.

Marcel Schmelzer sustained a tear in his left calf and will be unavailable for selection for three weeks.