Makes total sense to freeze out teammates when the media brings something from OUTSIDE the team to you in a question.
Two sources peg Irving’s change in demeanor to early February, around the time he was asked about the possibility of joining the New York Knicks next season. That’s when Irving infamously said he’d make the best decision for his family, and that he didn’t “owe anybody shit.” This induced panic among Boston fans. After all, it was a much different tune than the one he was singing in October 2018, when Irving told a gathering of Celtics season-ticket holders that he intended to re-sign with the team (multiple sources say that same commitment was expressed to his teammates).
Christ, it's not like Brown was calling him out---the media was doing what the media did and now suddenly Kyrie is disinterested? That does not compute.