The Miami Heat were without coach Erik Spoelstra for their game with the Brooklyn Nets on Saturday.
Miami confirmed prior to tip-off that Spoelstra would not be in attendance at FTX Arena due to personal reasons.
Assistant coach Chris Quinn was handed the reins of the Heat, who sat top of the Eastern Conference with eight games to play.
Miami have lost their past three games, opening the door for the Philadelphia 76ers to displace them as the top seed in the closing stretch of the regular season.
The Nets sat eighth in the East and looked set to be heading for the play-in tournament.