Kristaps Porzingis's availability has been a huge question mark for the Boston Celtics during their second-round series against the New York Knicks. The star big man did not play in the second half of Game 1,

The Boston Celtics may be without one of their key players in Saturday's Game 3 matchup against the New York Knicks.

The Boston Celtics are sticking with Al Horford as their starting center for Game 3 of the Eastern Conference semifinals, even though Kristaps Porzingis is available to play.