Steen is ill ahead of Tuesday's game against the Predators, Tom Timmermann of the St. Louis Post-Dispatch reports.

EDGE Analysis

While this development doesn't explicitly render Steen unavailable for the upcoming contest, the Blues won't be taking any chances, hence their emergency call-up of Samuel Blais. If Steen does miss time, it has the potential to send a negative ripple effect about the lineup, as the vetearn stalwart is utilized in both special teams situations.