Mystics second-year player Kiki Iriafen and other assistant coaches tried to hold Johnson back from continuing the conversation but to no avail. He received two technical fouls and was ejected from the game. Police officers stepped onto the court and ushered him into the locker room.
"I lost my cool," Johnson told reporters after the game. "There’s nothing more than that. That’s it. Officials did what was appropriate, and that’s all I can say."
Atlanta won the game 109-77 behind Reese’s 18 points, 17 rebounds and four steals. Seven of her 17 rebounds in the game came from offensive boards. Rhyne Howard led the way for the Dream with 19 points and six steals.
Iriafen led Washington with 24 points, three rebounds and three assists. Sonia Citron had 18 points. Iriafen and Citron were the only two Washington players in double figures in scoring.
The Dream improved to 7-3 on the season with the win. The Mystics fell to 4-5.
The Associated Press contributed to this report.