Robert Williams will miss the final "regular" season game of the Celtics' summer league slate. He could conceivably return when the playoffs start on Wednesday.
The rookie big man suffered a knee contusion on Friday after only seven minutes of his first game. It's the same left knee that he's suffered tendonitis in and his absence is considered precautionary.
If you're starving for a little post play, here's Danny Ainge backing down Terry Rozier at shootaround this morning.