Knight, a 6-foot-4 forward/center, once torched the Celtics for 20 points and 11 rebounds.

Nathan Knight goes to the basket during the second half of a preseason game against the Celtics. Sarah Stier/Getty Images

The Celtics are signing a big man Nathan Knight to a two-sided deal.

ESPN’s Adrian Wojnarowski first reported the news Sunday morning, and the Celtics confirmed it via an afternoon release.

Knight, a 26-year-old, 6-foot-1 forward/center from William & Mary, spent the preseason with the New York Knicks. He scored three points in nine minutes overall in two games against the Celtics.

He averaged 3.7 points, 2 rebounds and 0.2 blocks in 7.8 minutes per game over three up-and-down NBA seasons. Knight played 33 games for the Atlanta Hawks in 2020-21, 37 for the Minnesota Timberwolves in 2021-22 and 38 for the Timberwolves this past season.

Born in Syracuse, New York, Knight finished his high school career at Kimball Union Academy in Meriden, New Hampshire. He is a methodical player who takes his time and likes to get to his place.

Knight is a career shooter at 54.7 percent from beyond the arc and 26.5 percent from three-point range. He dropped 20 points (on 8-of-11 shooting) and added 11 rebounds and four assists in a win over the Celtics in December 2021.

The Celtics announced that in a corresponding move they have waived guard Jay Scrubb, who tore his ACL. As a two-way player, Knight can play a maximum of 50 NBA games.

While Knight is unlikely to see regular playing time, he has a chance to compete for periodic backup big minutes with the likes of Luke Kornet and Neemias Queta.