
Celtics Keep Harper Jr. with Multi-Year Contract
As offseason negotiations heat up in the NBA, the Boston Celtics have taken decisive action regarding one of their promising players, Ron Harper Jr. Amidst the ongoing discussions surrounding star Jaylen Brown’s future with the team, the Celtics have opted to decline Harper's $2.6 million team option and instead have agreed to a new three-year, $9 million deal that extends his stay with the franchise through the 2028-29 season. This strategic move indicates the Celtics’ commitment to continuing to develop Harper's skills as a key contributor to the team.
Understanding the Salary Cap Dynamics
Entering the offseason, the Celtics faced a significant challenge with their salary cap, sitting $67.2 million over it. However, they managed to maintain some flexibility by being $21.3 million under the first apron. While the details of Harper’s new contract are still emerging, it’s expected that his 2026-27 salary will not drastically differ from the option that was declined. This keeps the team’s financial situation relatively stable while allowing them to invest in the future of their roster.
Harper's Journey to the Celtics
Ron Harper Jr.'s NBA journey has been remarkable, starting with him going undrafted in 2022. His first professional step came with the Toronto Raptors, who signed him to a two-way contract that July. In his inaugural season, Harper primarily played with the Raptors’ G League affiliate, Raptors 905, showcasing his potential in nine NBA games before eventually making his way to Boston.
After participating in the Summer League in 2024 and securing a non-guaranteed training camp deal, Harper spent part of the 2024-25 season with the Maine Celtics before the Detroit Pistons acquired him on a two-way contract in January 2025. Having completed that season with the Pistons, he later returned to the Celtics on another training camp contract, which transitioned into a two-way deal prior to the start of last season.
Performance and Development in the G League
During his time in the G League, Harper demonstrated significant offensive capabilities. In a total of 67 games across three teams over the past three seasons, the Rutgers University alum averaged 18.4 points, shooting an impressive 46.5% from the field and 38.0% from beyond the arc. His performance in the G League laid the foundation for his eventual professional success, culminating in a career-high 29 appearances in the NBA last season with the Celtics.
Future Prospects under Coach Mazzulla
In the 2025-26 NBA season, Harper averaged 4.2 points per game with Boston, primarily contributing off the bench but earning three starts. With his new contract in place, it appears that the Celtics coaching staff, led by head coach Joe Mazzulla, sees potential in Harper for increased playing time and impact next season. His role could expand significantly, fostering a stronger connection with the Celtics' established players and system.
A Commitment to Player Development
The Boston Celtics are well-regarded for their ability to develop talent, nurturing players who can successfully integrate into their system. Harper’s signing highlights the organization’s investment in developing their younger talent alongside their established stars. With a secure place in the roster, Harper can focus on improving his game without the uncertainty of contractual status looming overhead.
Conclusion: A Bright Future Ahead
The Celtics’ decision to secure Ron Harper Jr. on a multi-year deal marks an important step in solidifying their roster as they move into the next phase of the offseason. As they navigate through potential trades and free agency movements, Harper’s commitment ensures both the team and player can focus on future improvements and contributions. With the right development and opportunities, Harper could evolve into a crucial cog in the Celtics machine as they pursue championship aspirations in the coming seasons.

