The Boston Celtics announced that the official announcement on Jeff Green’s mystery medical issue will come Saturday, but in the meantime, a source close to Green told A. Sherrod Blakely the small forward is expected to miss regular season time. (CSNNE)

A source close to Boston Celtics forward Jeff Green says the 6-foot-8 forward is expected to miss some games early on this season due to an undisclosed health condition that became apparent during his most recent physical. …

The same source did not know if it would require a medical procedure as well, but “that’s one of the options, for sure.”

Celtics forward Paul Pierce spoke with Green recently about his yet-to-be-determined status with the team.

“He’s down now,” Pierce told CSNNE.com. “I had a chance to sit down with him in his locker the other day, and I just told him to keep his head up regardless of what’s happening, and just try to stay positive. Whatever happens either way, whether he’s able to play or not play, just stay positive and use it for motivation if it’s the latter.”

This doesn’t sound good. Hope he’s alright.