Cammalleri is expected to play, however according to Roger Millions of Rogers Sportsnet, the injury is serious. It is not known at this time when Cammalleri suffered the injury.
Cammalleri, who can play center, left wing and right wing, did not play on Wednesday in the Flames' 3-2 loss to the Phoenix Coyotes. He led the Flames with 32 points last season.
The versatility that Cammalleri brings to the Flames' lineup on a regular basis is significant, and his leadership is key for a Flames organization that is rebuilding.
The Flames pre-season schedule is now over. In seven games, they had four wins and three losses. The Flames will start their 2013-14 National Hockey League regular season Thursday, October 3 in Washington against the Southeast Division champion Washington Capitals and will play their first home game at the Scotiabank Saddledome on Sunday, October 6 against the Northwest Division champion Vancouver Canucks.