Do Recent skid, Duncan Keith incident raise questions about Chicago?

— -- Hot and not

Is it time to worry about the Chicago Blackhawks?

Around the league

• The St. Louis Blues have dealt with key injuries all season, and defenseman  Jay Bouwmeester has now missed three straight games with a possible concussion. 
• With Michal Neuvirth on the shelf due to injury, the Philadelphia Flyers will bring former netminder Ray Emery in for a tryout to be the team's third goalie for the balance of the regular season.
• Florida Panthers forward Vincent Trocheck, tied for the team lead with 23 goals, left Tuesday's game after blocking a shot and will have an MRI on his left foot Wednesday.