TSN's James Duthie reported that Sharp has a separated shoulder, posting on his official Twitter account that Sharp has "a fairly severe AC joint shoulder separation."
In 24 games this season, Sharp has five goals and 18 points.
The Blackhawks meet the Avalanche again Friday at Pepsi Center (9 p.m. ET, NHLN-US), trying to extend their point streak to 25 games to start this season, and 31 stretching to the end of the 2011-12 regular season.
I'm just excited about the opportunity. I've been on the ice earlier than usual and in the weight room, pushing around a little more weights than usual. Every day I go into a workout with a smile on my face and ready to go. When you do have a little more responsibility, you want to take your lunch pail and get ready to work.
— Brian Elliott to Jeremy Rutherford of the Post-Dispatch on being the Blues' No. 1 goalie