Blackhawks forward Patrick Sharp left Sunday's 3-2 overtime loss against the Red Wings after the first period with an upper-body injury and didn't return.
Chicago announced Sharp was done for the night at the start of the third period.
"He's got an upper-body (injury)," Blackhawks coach Joel Quenneville said after the game. "We're going to do some tests. We'll know more tomorrow."
Patrick Sharp Exits After First Period