Boston Celtics guard Kemba Walker received a stem cell injection in his left knee and is out until at least the first week of January, the team said Tuesday.
Walker received the injection after consultation with multiple specialists in early October and was put on a 12-week strengthening program. The Celtics said he is expected to return to on-court activities in early December and an update on his availability to play in games will be provided in the first week of January.
Walker, 30, averaged 20.4 points, 4.8 assists and 3.9 rebounds last season, his first with the Celtics after signing a four-year contract in free agency.