Penguins' Letang released from hospital; diagnosed with concussion

Pittsburgh Penguins defenseman Kris Letang has been diagnosed with a concussion as a result of the nasty hit he took from Shane Doan in Saturday's win over the Arizona Coyotes. 

He's since been released from hospital and his return to action is being considered a day-to-day process, head coach Mike Johnston told reporters. 

Letang crept into the Norris Trophy discussion with a productive stretch through January and February, but has seen his production tail off a bit in March.

He has seven points in 14 games this month.