The Celtics insist they know what's wrong with Kristaps Porzingis, but they won't give away any details. Boston Celtics center Kristaps Porzingis has been dealing with an illness that knocked him out of the lineup in March and has forced him to miss time here and there ever since.

Kristaps Porzingis has been limited in the East semifinals due to an illness, though there's still a lot unknown about it.

As the Boston Celtics prepare for a pivotal Game 3 against the New York Knicks, Kristaps Porzingis’s ongoing battle with a mysterious illness remains a significant concern. ESPN insider Shams Charania appeared on The Pat McAfee Show on Friday and provided an update on the Celtics’ star center.