Devin Carter signs with Celtics on an Exhibit 10 training-camp contract, Boston announced Sept. 14, 2026, giving the 2024 lottery pick a fresh shot at a roster spot just three days after the Atlanta Hawks waived him.
From waived to wanted
The Hawks waived Carter on Friday, Sept. 11, along with guard Lamont Butler, and Boston’s interest in Carter surfaced the same day. Carter was the No. 13 overall pick by the Sacramento Kings in the 2024 draft, and Atlanta acquired him and a 2033 second-round pick from Sacramento in a late-June trade. His first two NBA seasons were limited to 74 games by injuries, including shoulder surgery, a track record that turned a former lottery pick into a low-cost roster flier rather than a guaranteed rotation piece.
What an Exhibit 10 deal actually means
An Exhibit 10 is a one-year, non-guaranteed minimum-salary contract used for training camp. Boston can convert it to a two-way contract before the regular season if Carter is eligible and the team chooses that route. If he is waived and then spends at least 60 days with Boston’s G League affiliate, the agreement can also provide an Exhibit 10 bonus. It is not a continuation of Carter’s rookie-scale contract; it is a low-risk camp opportunity with a defined path to either an NBA roster spot, a two-way slot or the organization’s G League program.
Why Boston makes sense
The roster logic is straightforward. Boston is looking for guard depth heading into training camp, and a former lottery pick still on rookie-scale money, even a waived one, is a low-cost bet if he can stay on the floor. The calculation for the Celtics is simple: if Carter’s injury history was more about bad luck than a durability problem, Boston gets a talented, cost-controlled guard; if it was not, the team has lost almost nothing by finding out during camp instead of the regular season.
What’s next for Devin Carter?
Carter still has to earn his way onto Boston’s regular-season roster or secure a two-way slot during camp and the preseason, the same evaluation window every Exhibit 10 signee faces. For a Celtics team finalizing its depth chart at guard, Carter’s addition is less a finished decision than the start of one, a low-risk audition that will be decided on the practice floor rather than in a press release.