Sources: Celts center Williams out several weeks

Boston Celtics center Robert Williams III — an anchor of the league’s best defense — suffered a meniscus tear in his left knee, the team announced Monday. Sources told ESPN that

He will be out of action for several weeks.

A Monday MRI revealed the tear. Further evaluations during the day will help determine a timetable for a possible return. The Celtics promised an update later in the week.

” There are some operations that keep you out for longer than others,” coach Ime Yudoka stated Monday. “We are hoping for the best. ”

Boston moved into first place in the Eastern Conference on Sunday, and Williams, 24, has been an immense part of a dominant league-best defense. He was injured in the 134-112 victory over the Minnesota Timberwolves on Sunday — the Celtics’ 24th victory in 28 games.

Williams ranks No. 1 among 169 players in the league who have defended 500-plus shots as the closest defender, per Second Spectrum tracking. Only Williams has held opponents under 40% shooting.

Williams — who signed a new four-year, $54 million extension in the offseason — has averaged 10 points, 9.6 rebounds and 2.2 blocks. He has shot 73% from the floor.