Looking at those D pairings and I have a few immediate thoughts:
1 - Thank goodness for Walman stepping forward in a big way this season.
2 - Should I remember who Santini is? Good luck to the dude. Busting your ass on the taxi squad all year probably sucks, so I hope he plays his best in his moment.
3 - Sure would be nice if Mikkola decides he wants to grab an NHL job. This is a good game for him to distinguish himself.
I'm sure some will be celebrating Krug's absence, if he can't go, while ignoring that he's played the most difficult competition of any D-man on the Blues. Now someone else will be exposed to that role.