Jamal Musiala for Thomas Muller
Not much explaining needs to be done here, really. The 21-year-old trained on Monday, so in theory should be fine for Wednesday, particularly as he is coming back from an illness rather than an injury. With the amount of chances Bayern created against Gladbach, the scoreline would surely have been more than one with Musiala playing.
The chance that Muller had midway through the first half, would in particular have been more likely to be scored if Bayern's wonderkid was playing instead.