The NBA slapped reigning Defensive Player of the Year Marcus Smart on Monday with a $25,000 fine for an on-court altercation.

The Boston Celtics player was ejected from a game on Saturday when he got into a tussle with Atlanta Hawks All-Star guard Trae Young. The league said in a news release that Smart initiated the altercation and pulled “Atlanta Hawks guard Trae Young to the floor.”

Both players were handed a technical foul and ejected for the incident, which took place in the fourth quarter of the Celtics’ 134-125 victory in Atlanta.

Point guard Smart was instrumental in the Celtics’ run to the NBA Finals last season and is averaging 11.4 points and 6.5 assists in 51 games this season.

–Field Level Media