The Colorado Avalanche have now made an official announcement regarding forward Nathan MacKinnon, who was injured Monday night.
MacKinnon left last night with 8:13 remaining in the first period and did not return. It was reported that he would ''miss some time'' with an upper-body injury, and now we know just how long.
Sportsnet's Elliotte Friedman shared the news:
''COL to be without Nathan MacKinnon (upper body) for approximately 4 weeks.''