The Boston Herald reports:

Doc Rivers missed today’s practice after having a procedure Sunday to relieve pressure on his vocal cords.

The outpatient procedure was performed at Mass. General, and Rivers is reportedly able to speak normally.

The Boston Globe blog reports:

“Right now the doctor doesn’t want him using his voice,” Frank said of Rivers. “Everything looks good and he’s looking forward to getting back. They just want him to rest his voice box. Obviously, he’ll be using it quite a bunch, so he’ll have plenty of time.”