Sounds like Mack is headed back to the team that originally drafted him.
In dire need of backcourt production, the Washington Wizards have reached agreement to sign guard Shelvin Mack, league sources told Yahoo! Sports. Mack has averaged nearly 21 points per game for the Maine Red Claws of the NBA Developmental League. He will join the reeling Wizards on Monday.
If the Celtics needed a backup point guard, Mack might have been a decent option to consider at some point but they probably had enough guards on the roster anyway. Mack will get more playing time and opportunities with the Wizards anyway, so this is probably better for his career.