The officials missed one in Tuesday night's Game 4 between the Winnipeg Jets and the Minnesota Wild.
Jets defenseman Josh Morrissey gave Wild forward Eric Staal a cross-check to the side of the head in the first period that went uncalled.
The NHL's Department of Player Safety will have a couple of days to review it.
Safe to say Wild head coach Bruce Boudreau wasn't thrilled with the officiating.
Staal went to the bench in clear discomfort after the incident but was able to continue playing.
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