The playoffs start next week and every team that has locked up a playoff spot wants to go into the postseason as healthy as possible, especially in net. 

Having to turn to the backup in a playoff series could signal the end to a playoff run before it even begins.
Friday at practice, Leafs fans were fearing the absolute worst after starting goaltender Frederik Andersen took a puck up high and was down on the ice.

Panic set in immediately for Toronto fans on Twitter which is understandable considering the situation. The panic was short-lived as Andersen returned to the net, much to the delight of fans.
With the playoffs right around the corner, any news like this will create panic for fans of any team.  Further to Andersen's injury scare, there's also the situation happening with Garret Sparks that nobody knows anything about.
(H/T: Kristen Shilton)