Doc Rivers  had a planned surgical procedure Sunday morning at Massachusetts General Hospital to relieve pressure on his vocal chords, the team said after Monday’s practice, which Rivers did not attend. The team called the surgery, “minor.”
“He came through,” said assistant coach Lawrence Frank . “He feels good, but right now the doctor just doesn’t want him using his voice. So he’s day to day, but everything looks good and we look forward to getting him back.”
Frank said that Rivers returned to his Boston home after the surgery and is essentially day-to-day. “They just want him to rest his voice box,” Frank said. “He gave us the [practice] plan and we executed the plan.”
The Celtics  will have an open practice at TD Garden Tuesday night for season-ticket holders and sponsors. Their last exhibition game is Wednesday night at the Garden. There is no word as to whether Rivers will be back for either yet.