Lucas Barrios opened the scoring on 52 minutes before Nuri Sahin doubled the hosts' lead on the hour mark.

Now Dortmund lie second in the league table with 18 points while Champions League runners-up Bayern are languishing in 12th place.

Dortmund's Zidan is expected to return from injury in the near future.

The Egypt ace sustained a major knee injury late last season and has been sidelined ever since.