This just released by the team:

Tampa Bay Lightning goaltender Mike Smith is suffering from post-concussion syndrome but is expected to return to the ice within the next week. The original injury dates back several weeks, although Smith started to be concerned about symptoms after the team’s game against the Philadelphia Flyers on Jan. 30.

“We were hopeful that Mike’s symptoms would clear sooner and they haven’t, so were taking a conservative approach with him making sure he is 100 percent before he returns to the ice,” Lightning Executive Vice President & General Manager Brian Lawton said. “Although Mike would prefer to be skating and playing right now the appropriate course of action is to err on the safe side.”

Smith is working with the team’s medical staff on a regular basis on the rest, recovery and rehabilitation process. Before participating in any game activities, Smith will return to the practice ice when the team’s medical staff is comfortable with his progress. Smith, acquired last season in a trade with the Dallas Stars, has appeared in 41 games this season posting a 14-18-9 record with a 2.62 goals-against average, a .916 save percentage and two shutouts.