Jeff Green underwent heart surgery to repair an aneurysm on Monday. Doc Rivers heard that it was successful.
"They're saying it went great," said the Celtics' head coach. "Obviously, our thoughts, our prayers, and every part of our being is with Jeff right now."
Rivers said that he now wants to hear that Green will be able to play again.
"That would be terrific. I don't care if it's with us. I want it to be with us. But I just want him to play again.
Green will be an unrestricted free agent if and when he returns because the Celtics withdrew the qualifying offer that would have bound him to the team.