​On Wednesday morning, the Boston Celtics unveiled their full 16-man roster for the 2026 Las Vegas Summer League. While a handful of names might be unfamiliar to most Celtics fans, there are a few returnees from last season that should be on everyone’s radar, including former first-round pick Hugo Gonzalez and 7-foot big man Amari Williams. These two young players, along with guard John Tonje, are the only members of the Summer League squad who actually appeared in Celtics games during the 2025-26 regular season. They could all be in consideration to start for the Summer Celtics, who will be led by Celtics assistant coach Amile Jefferson.
There’s also a chance that the newest Celtics could grab starting roles, as 2026 first-round pick Chris Cenac Jr. and 2026 second-round pick Dillon Mitchell were named to the team. The mix of familiar faces and new talents makes this roster an intriguing one as Summer League play approaches. The Green Team will tip off in Las Vegas on Friday, July 10, when they face the Toronto Raptors, and fans will have plenty of opportunities to evaluate the development and potential of this crop of Celtics.
To help fans get acquainted with the rest of the Celtics heading to Sin City, here’s a closer look at the full Summer League roster and where each player comes from. Mohammad Amini joins the Celtics Summer League squad as a guard standing 6-foot-7, most recently with Nancy Basket in France. The tall, versatile guard delivers a lengthy wingspan and the ability to contribute on both ends of the floor.
Chris Cenac Jr., listed at 6-foot-11 with the ability to play forward and center, is one of the notable newcomers and carries the pedigree of a 2026 first-round pick. Cenac brings rim-protecting potential and interior scoring, projects that should translate well in Summer League competition as he gains experience against seasoned pros and fellow prospects.
Dillon Mitchell, another elevated prospect for the summer, checks in at 6-foot-11 as a forward with a well-rounded skill set. Mitchell brings a combination of size, mobility, and shooting touch that should allow him to stretch the floor and contribute in multiple lineups. His presence gives Boston a legitimate multifaceted frontcourt option to experiment with during the Las Vegas slate.
Hugo Gonzalez remains a name Celtics fans will recognize, with previous experience in the organization and a familiarity with the team’s system. Gonzalez’s progression and ability to contribute as a guard who can score and facilitate will be closely watched as he competes for minutes on the backcourt.
Amari Williams, at 7 feet tall, is the prototypical modern center who can anchor the middle on defense while offering interior scoring and a soft touch around the rim. Williams’ length and shot-blocking ability should be a focal point for Boston’s summer roster as he attempts to earn a more permanent role within the organization.
John Tonje is the third member of this trio of Celtics players who saw time with Boston during the 2025-26 regular season. Tonje’s versatility as a guard who can defend multiple positions, alongside his shooting and playmaking, makes him a strong candidate to contribute immediately in Las Vegas.
The roster also includes a mix of players who have spent time in the G League or college programs, creating a balance between potential growth and professional readiness. The Summer League is an ideal stage for the Celtics to evaluate how these players fit together, identify which prospects can contribute in longer-term development plans, and determine which combinations best balance floor spacing, playmaking, and defensive versatility.
As the start of Summer League approaches, all eyes will be on how these players perform in a high-competition environment and how their games translate to Boston’s system. With Amile Jefferson guiding the squad and a blend of returning players and fresh talent, the Celtics’ 2026 Las Vegas Summer League roster is poised to showcase a range of possibilities for the team’s future. Fans will be eagerly watching the July 10 opener against the Toronto Raptors to see which players seize the moment and distinguish themselves in the desert.