Celtics Bring Back Ron Harper Jr. on Exhibit 10 Deal
The Boston Celtics wasted little time filling out their offseason roster, agreeing to a deal with Ron Harper Jr., according to Michael Scotto of HoopsHype. The move brings Boston’s roster to the offseason maximum of 21 players, though Harper faces a steep climb to crack the final lineup.
Ron Harper Jr.’s Path Back to Boston
The Detroit Pistons waived Harper earlier this summer after signing him from the Celtics’ G League affiliate, the Maine Celtics, in January. Harper appeared in just one NBA game — Detroit’s season finale against the Milwaukee Bucks — where he tallied four points, seven rebounds, and two assists in 17 minutes.
Now, the 6-foot-4 wing rejoins Boston on an Exhibit 10 contract, per Keith Smith of Spotrac. While making the parent club remains a long shot, the deal positions him to return to Maine for further development.
Last season across the G League, Harper averaged 18.2 points per game, shooting 39% from beyond the arc on nearly nine attempts per contest. He added 4.5 rebounds, 2.7 assists, and 1.1 steals, proving himself as a versatile scorer with defensive upside.
Celtics Leave 15th Roster Spot Open
Boston recently signed Amari Williams, the 46th overall pick in the 2025 NBA Draft, to a two-way deal, joining Max Shulga and RJ Luis Jr. in occupying the team’s three two-way slots. Harper will compete with Jalen Bridges, Aaron Scott, and Hayden Gray, who also signed Exhibit 10 deals.
The Celtics currently have 14 players on standard contracts, meeting the league’s minimum but leaving one roster spot unfilled. While that opening could theoretically go to Harper, another young prospect, or even a veteran free agent like Ben Simmons, the organization appears more focused on preserving flexibility.
According to Brian Robb of MassLive, Boston is inclined to keep the 15th spot vacant to maximize luxury tax savings, especially during what many view as a transitional season. That makes Harper’s challenge even greater — but training camp could always shift the calculus if he or another player impresses.
Final Outlook
Ron Harper Jr.’s return gives Boston another developmental piece for Maine while maintaining roster flexibility. The Celtics’ decision to keep their 15th spot open reflects their long-term strategy, prioritizing financial maneuverability over short-term depth. For Harper, training camp is another chance to prove he belongs — even if his immediate NBA role remains uncertain.
