Robert Williams will reportedly make his season debut on Friday when Boston hosts Orlando, according to Shams Charania of The Athletic.

Williams hasn’t played this season due to a knee procedure he received in September that would knock him out of action for 4-6 weeks.

Williams is a significant difference-maker for a Celtics squad with the best record in the League, the best offense (118.1 offensive rating), and the eighth-best defense (111.8 defensive rating). Last season, Williams averaged 10.0 points, 9.6 rebounds, and 2.2 blocks per game. Those numbers were the backbone of a Boston team that held the best defense in the League and a dangerous offense on the other end as a lob threat that cleans up the boards.