It was reported first by multiple sources that follow the Bruins, including Matt Porter (@mattyports) of the Boston Globe and Conor Ryan (@ConorRyan_93) of the Boston Sports Journal:
Marchand will be going through follow-up procedures and appointments to gauge the significance of the hip injury, where surgery may need to be required. As reported by Ty Anderson (@TyAnderson) of 98.5 the Sports Hub, the organization seemed surprised about the injury and were pretty hush-hush on the severity of it:
Of course, everyone is still exploring all their options to make sure how major it really is, but the way Don Sweeney and the Bruins organization don't want to comment is a little frightening. The team may already be without Patrice Bergeron, and losing Marchand for a significant time would be devastating.
Nothing is set in stone yet as they're all just reports. Let's hope all is well with Brad Marchand's health!