#4 A decimated Dortmund squad
Borussia Dortmund have been plagued by injury this season (if that's not a surprise). The Black and Yellows are without the services of star players such as Mario Gotze, Marco Reus, Andre Schurrle along with handy first team players in Gonzalo Castro (created most chances for BVB this season), Lukasz Piszczek (by far the best right back in the team) and Maximilian Philipp (arguably the signing of the summer for BVB).
Furthermore, they are also missing Sebastian Rode, Erik Durm and Jacob Bruun Larsen. To add salt to the wounds, Borussia Dortmund could be without star striker Pierre-Emerick Aubameyang this midweek, as the Gabonese International sustained a muscular injury during training on Monday.
If Aubameyang, who has scored 21 goals in all competitions this season, does become unavailable against Bayern, Borussia Dortmund could receive a hammering this midweek.