According to the Boston Celtics team site ( https://www.nba.com/celtics/roster ), the team’s Two-Way players have some new jersey numbers.
Recently signed R.J. Hunter, who is back for a second go-around with the Celtics, will wear jersey #4. In his first stint in Boston, Hunter had worn #28.
As most will remember, jersey #4 had most recently been worn by Isaiah Thomas. No one has donned #4 since Thomas was traded to the Cleveland Cavaliers as part of the deal to bring Kyrie Irving to Boston.
Jersey numbers for the Celtics are a somewhat limited quantity, as the team has retired an NBA-high 22 numbers.