BOSTON — While the Celtics navigate a transitional offseason, three new rookies are entering the organization following the 2025 NBA Draft. Realistically, all three of those guys aren’t expected to contribute immediately considering where they were taken in the draft.

Whatever comes next, the Celtics’ supporting cast already has been crushed this offseason. Over the last two weeks, they have said goodbye to three rotation players from last season and could soon lose a fourth in free agent Al Horford. That total doesn’t include Tatum, who is set to miss much of next season with an Achilles injury.

With free agency set to open Monday at 6 p.m., plenty of retooling could still be imminent as the team assesses its short-term future without injured star Jayson Tatum.