Roberts (hamstring) has been ruled out of Thursday's preseason outing versus the Celtics, Rick Bonnell of the Charlotte Observer reports.

EDGE Analysis

Roberts is dealing with a lingering hamstring injury and has yet to make his preseason debut. He'll sit out a second straight game Thursday, with his next chance to return against the Celtics on Saturday. Roberts expects to open the season as the team's third-string point guard, which will heavily restrict his minutes.