Lonnie Walker IV has been waived by the Celtics as he failed to secure a spot on the opening night roster. He signed an Exhibit 10 contract in August but faced challenges due to the team's depth and financial constraints. Walker averaged 9.7 points per game last season with the Nets and had previously shown promise with a career-high of 12.1 points per game during the 2021-22 season with the Spurs. If he clears waivers, he may join the Celtics' G League affiliate in Maine, which could provide future opportunities.