Williams (COVID-19 protocols) is listed as available for Monday's contest against the Timberwolves, John Karalis of the Boston Sports Journal reports.
Williams will be available for the first time since Dec. 13. There's a possibility he will be limited in his return to action, but it'll likely be all hands on deck as the Celtics are still without numerous rotational players due to COVID-19 protocols, including Jayson Tatum, Josh Richardson and Enes Freedom. Before the lengthy absence, Williams was averaging 7.5 points, 3.4 rebounds and 1.0 assists across 22.1 minutes per game.