Celtics Land the Perfect “Swing” Player to Elevate Summer League Ambitions
As the Boston Celtics embark on a roster cleanse—moving key veterans and trimming payroll—they’ve made a savvy addition with a versatile swing player tailor-made for this transitional phase. Sources report the team has officially added Ben Gregg, a 6′10″ Gonzaga forward, to their Summer League roster. This move aligns perfectly with Boston’s strategy of optimizing flexibility and development this summer.
Gregg, who went undrafted in the June 2025 NBA draft, brings a well-rounded skill set. In his final collegiate season, he averaged 9.1 points, 4.9 rebounds, and showcased a 57% field-goal clip, highlighting his efficiency in the paint. What makes him particularly intriguing is his ability to stretch the floor: he previously hit over 37% from beyond the arc, a skill that could flourish with NBA-level coaching.

Gregg’s addition complements other summer newcomers like Amari williams and Hugo Gonzalez. The forward joins a group of young talent that includes two undrafted rookies, signaling Boston’s commitment to evaluating high-upside players head-to-head in Las Vegas. With core rotation players like Jaylen Brown and Derrick White still on the roster, Gregg gains the rare opportunity to prove himself within a championship-caliber organization.
For a team recalibrating its identity after trading Jrue Holiday, Kristaps Porzingis, and releasing Luke Kornet, Gregg offers flexibility and skill versatility in multiple roles. Coach Joe Mazzulla will likely utilize him both as a stretch four and occasional power forward, evaluating whether he can translate his collegiate strengths to pro play.
Boston fans should mark their calendars: Gregg is expected to hit the Summer League floor beginning July 10 in Las Vegas, where he’ll have the stage to fight for a training camp invite and potential two-way contract.
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