Celtics sign Ron Harper Jr. to NBA contract

The Celtics who were required to get back up to fourteen players on their roster have signed Ron Harper Jr. to a new two year NBA contract. It's two years by name, but of course there are only five games remaining in the NBA season for this year. Thus Harper's minimal prorated salary for this season will keep Boston under the luxury tax.

Harper Jr. will be eligible to play for the Celtics this postseason and the team still has a 15th roster spot to fill, which hopefully they do, since you can never predict injuries in a long playoff run. It is unclear if Harper's contract for the 2026-27 season is fully or partly guaranteed, or a team option.

Harper has done a solid job for the Celtics when called upon to play a bigger role due to injuries.

Asked Joe Mazzulla about the emotions of Ron Harper getting an NBA deal after 4 two-way contracts:

“Happy for him, the player — also happy for the G League staff, all the people that put the time in for helping us get there.”

"It really starts with him. He's done a lot for… pic.twitter.com/BEfMKfyzjV

— Noa Dalzell 🏀 (@NoaDalzell) April 6, 2026

We have signed Ron Harper Jr. to a standard NBA contract ☘️ pic.twitter.com/tuu7x9lwBO

— Boston Celtics (@celtics) April 5, 2026