The Bruins announced this afternoon that three players had surgery following the end of the bubble season.
While the procedures on Brad Marchand, David Pastrnak, and Charlie McAvoy were seemed successful, the procedures will likely impact regular season availability for at least two of them.
Per the team, Marchand had surgery for a sports hernia on September 14. He's expected to make a full recovery in four months, which would be mid-January.
Pastrnak had a right hip arthroscopy and a labral repair performed on September 16. He's expected to make a full recovery in five months, which would be mid-February.
McAvoy had a right knee arthroscopy performed on September 8, and he's expected to be ready for the start of next season.
There's still a lot of uncertainty surrounding whether or not the league will actually fully start up on January 1, but if it does, it looks like the Bruins might be without 2/3 of the first line.
If nothing else, this gives some insight into the nagging injuries that caused Pastrnak to miss some time in the bubble.