The surgery was performed by team physician, Dr. Brian McKeon, at New England Baptist Hospital.
“I would first like to apologize to my fans, teammates, coaches and the entire Celtics organization," Davis said in a statement. "I am extremely disappointed that this incident occurred and that it will prevent me from starting the season with the rest of my teammates.
"My teammates and the entire Celtics organization are extremely important to me and I will do my best to expedite the healing process and be back on the court as soon as possible."