Boston Celtics star Kristaps Porzingis is day-to-day with an illness, coach Joe Mazzulla told reporters on Tuesday. It's unclear if Porzingis, who did not play in the second half of the team's stunning Game 1 loss to the New York Knicks, will be ready for Game 2 on Wednesday.

Mazzulla added that the center is still working through the remnants of an upper respiratory infection tat caused him t miss eight games in March.

The Celtics' head coach provided an update on his star big man after leaving Game 1 against the Knicks with an illness.