Celtics' Horford to miss more games; Brown, Hayward out, too
That absent trio ranks Nos. 4-6 in scoring for Boston this season.
The game against Washington was Horford's third in a row on the sideline. He said the pain in his knee has not been getting better.
The Celtics did get back Aron Baynes, who had been out for two whole games and most of a third with a bad ankle.
The Wizards, meanwhile, ruled out Otto Porter Jr. with a bruised knee, but John Wall was set to return to the lineup.