Porzingis (hamstring) is listed as out for Tuesday's game versus Utah.
Porzingis will miss a third consecutive game due to a right hamstring strain. Al Horford (toe) is also sitting out Tuesday in the second leg of a back-to-back set, so the Celtics will likely turn to a committee of Luke Kornet, Xavier Tillman and Neemias Queta to handle the minutes at center.