The Boston Celtics have released the full slate of games for the 2026 NBA Summer League, which will be staged on the University of Nevada, Las Vegas campus. The league kicks off on Friday evening, July 10, and runs through the first weekend of the competition.
Assistant coach Amile Jefferson will assume head-coach duties for the Sin City Celtics. Jefferson is about to begin his fourth season with the organization, having spent three full years on Boston’s bench before being tapped to lead the summer squad.
Boston’s summer roster blends continuity with new talent. Two fan-favorite players from the previous roster will join the two 2026 draft selections that President of Basketball Operations Brad Stevens and his staff secured in the draft. The remainder of the roster consists of a mix of promising prospects who will compete for a spot on the regular-season roster, as well as players looking to showcase their abilities for contracts elsewhere in the league.
Assigning Jefferson to the helm gives the Celtics a low-pressure environment to test coaching concepts and evaluate player development pathways. The Summer League’s fast-paced, short-court format allows the staff to observe how draft picks adapt to the Celtics’ offensive and defensive philosophies, while also giving Jefferson a chance to experiment with rotations and set pieces without the scrutiny of regular-season play.
A fifth matchup remains pending and will be scheduled once the outcomes of the early games dictate the need for an additional showcase. This flexible slot ensures the league can accommodate compelling storylines that emerge as prospects vie for attention.
Performance in Las Vegas will feed directly into Boston’s roster decisions ahead of training camp. Players who impress under Jefferson’s guidance could earn invitations to the preseason roster, while others may find opportunities with different teams. For fans, the published schedule provides a clear timeline to track the development of Boston’s next wave of talent and to see how the organization’s draft philosophy translates onto the court.
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