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.

BOSTON (AP) — Celtics center Kristaps Porzingis didn’t play in the second half of Boston’s 108-105 overtime loss to the New York Knicks in Game 1 of the Eastern Conference semifinals because of an illness. Porzingis wasn’t on the floor initially with the team Monday night as they warmed up prior to the start of the second half.

BOSTON — Kristaps Porzingis unexpectedly left the Celtics’ Game 1 loss to the Knicks in the first half due to illness on Monday night. The Celtics were back together on Tuesday at the Auerbach Center watching film before a pivotal Game 2 matchup.