The Boston Celtics have signed free-agent wing Ron Harper Jr. to an Exhibit 10 contract, according to HoopsHype’s Michael Scotto. The 25-year-old guard/forward, who has previously spent time with the Toronto Raptors and Detroit Pistons , will join Boston for training camp as he competes for a roster spot ahead of the 2025–26 NBA season.

Harper, a 6-foot-6 wing, went undrafted out of Rutgers University in 2022. He began his professional career with the Raptors, spending his first two seasons on two-way contracts.

After being waived by Toronto in December 2023, Harper briefly joined Boston on a training-camp deal but did not make the roster. He later signed with the Pistons on a two-way contract in January 2024, where he split time between Detroit and their G League affiliate, the Mo

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