BOSTON (CBS) — Rajon Rondo was kicked out of Sunday evening’s game in Detroit, but that’s just the beginning of his punishment.

Rondo was suspended for two games for throwing a basketball at the chest of referee Sean Wright.

Rondo originally was given a technical foul for arguing for a foul call, and upon receiving the technical foul, he threw the basketball at the referee.

The Celtics were without Kevin Garnett on Sunday due to personal reasons and will be without him again on Monday in Dallas against the defending champions.

The 25-year-old Rondo is averaging 14.8 points, 9.5 assists and 4.9 rebounds for Boston this season. He had averaged 28 points and 9.5 assists over his last three games leading up to Sunday, when he scored just five points but managed 10 assists in his 28 minutes.

The two-game suspension will keep Rondo out Monday against Dallas and Wednesday at Oklahoma City. The Celtics don’t play again until after the All-Star break on Tuesday, Feb. 28 in Cleveland.