Mitchell Robinson agreed to a three-year, $47.4 million contract with the Celtics, reports ESPN’s Shams Charania.

Robinson’s deal includes a player option in the third season. The 28-year-old center is coming off winning a championship with the Knicks as the organization’s longest-tenured player. Now Robinson will call Boston home for at least the next two season. The Celtics desperately needed help in the frontcourt and the addition of Robinson helps address that need. It’s no surprise the Knicks didn’t elect to sign Robinson given the team’s cap situation the organization’s desire to avoid the second apron. Robinson will go into the Celtic’s mid-level exception and Boston will be hard capped to the first apron.