Blues' Thomas Greiss: Dealing with undisclosed injury

Greiss recently suffered an undisclosed injury, Jeremy Rutherford of The Athletic reported Monday.

Greiss has played just once in the Blues' last eight contests, so it's not immediately clear when he sustained this undisclosed injury. Regardless, the team brought in Vadim Zherenko to serve as the backup against the Flyers on Tuesday if Greiss cannot give it a go.