What happened: Qualifying begins Thursday and runs through Monday. Williams signed a two-way contract with the Celtics in July before joining Great Britain for the window.
Why it matters: The games offer Williams international competition during the NBA offseason. His schedule now bridges Boston’s Summer League program and preparations for the 2026-27 season.
By the numbers: Boston accounts for four of the 37 NBA players participating, about 10.8% of the league-wide contingent.
What to watch: Williams’ minutes and role for Great Britain will be the immediate points to track through Monday.