Blackhawks forwards Ben Smith and Viktor Stalberg left Wednesday's 4-3 victory over the Red Wings early with injuries.
Smith was hit in the head in the open ice by the Wings' Brendan Smith, who received a match penalty.
"Both referees said it's a classic example of what we're talking about, that's the illegal hit," coach Joel Quenneville said. "It was pretty black and white. I'm not happy about it."
Quenneville Miffed At Hit By Wings' Smith