The Celtics say All-Star point guard Kyrie Irving is set to have surgery Saturday to alleviate pain in his left knee.
Irving has been out since March 11, missing the last four games. There is no timetable for his return from the "minimally invasive" procedure.
Celtics coach Brad Stevens was asked before Boston's game in Portland on Friday night the ramifications of Irving's surgery.
"I don't know yet," Stevens said. "He's going to have it tomorrow and we'll know more about timelines after that."
The knee is the same one that Irving injured in the 2015 NBA finals that required surgery.
Irving is averaging 24.4 points, 5.1...