Robert Williams sidelined by hamstring injury

The Boston Celtics host the New York Knicks tonight, but will be without Robert Williams who suffered a hamstring injury in Friday night's loss to the Nets. The oft-injured Williams is pivotal to the Celtics title chances so hopefully this isn't one of those hamstring injuries that takes forever to fully heal. NBA 6th Man of the Year candidate Malcolm Brogdon is also questionable for tonight's match-up.