The Panthers announced the news early in the second period of their game on Tuesday night. It's unclear when Barkov was hurt or the severity of the injury. He did have an assist on Sean Bergenheim's goal late in the first period that tied the game at 2.
Barkov was selected with the No. 2 pick in the draft last summer. He entered the game with a team-leading 23 points (eight goals, 15 assists), which ranked ninth among NHL rookies.
Earlier this month, the 18-year-old was selected to play for Finland at the Winter Games in Sochi.
I remember the first time at Wrigley Field all of us had the long johns, the turtlenecks and the extra equipment because we were afraid of being cold. Halfway through the first period everybody's ripping everything off and we just ended up wearing what we would normally wear for a game at the United Center.
— Chicago Blackhawks forward Patrick Sharp on the 2009 Bridgestone NHL Winter Classic