Austin Rivers was kicked out when, after missing a layup, he lightly pushed official J.T. Orr with 6:38 to play.
Then, during a dead ball, Doc Rivers went to lead official Jason Phillips to ask him what happened. After the two exchanged words, Phillips ejected Rivers with 6:13 to play. Assistant Mike Woodson took over coaching duties.
It's the second time this season Doc Rivers has been ejected from a game.