CLEVELAND -- The Boston Celtics will rest star guard Kyrie Irving against the Cleveland Cavaliers.

Irving is averaging 23.8 points and the Celtics want to keep him as fresh as possible going into the post-season.

The Celtics have lost four straight and are fifth in the Eastern Conference entering Tuesday night's game in Cleveland.

Irving played his first six seasons with Cleveland. The six-time All-Star demanded a trade following the 2016-17 season and was dealt to Boston. He hasn't played in Cleveland since the 2017-18 opener.

Celtics centre Al Horford (sore left knee) and forward Jayson Tatum (back contusion) could return Tuesday. Coach Brad Stevens said both were "questionable to probable" at the team's shootaround.