week 16 and both of my starting CBs get serious injuries? OK

I've had seasons where 2 of 3 DTs, 2 of 2 REs and 1 of 2 LEs were all injured to some degree or another. Enough to take them out for at least a few games. It was not a fun stretch!

yeah thats impossible /s

8 defensive injuries in the two weeks before the playoffs start. Something isn't right here.

First: did you implement individual fatigue settings?
Second: all injuries are of minor character (probable), all players are fully able to play.