Thomas appeared in 12 games for Boston last year as a two-way player. He spent most of the season with the team’s G League affiliate in Maine, averaging 14.5 points, 5.6 rebounds and 3.9 assists in 22 games.
The 25-year-old shooting guard began his career with the Rockets in 2020 after going undrafted out of Truman State. He finished that season on a two-way contract with the Cavaliers, then signed another two-way deal with Cleveland last summer but was waived prior to the start of the regular season.
Thomas spent the 2022 offseason as a restricted free agent after receiving a qualifying offer in June. He had been considered a “strong candidate” to return to Boston, and today’s signing makes it official.
The move brings the Celtics to the offseason limit of 20 players. The team has just 10 fully guaranteed contracts, and Thomas will compete for a roster spot against players such as Noah Vonleh, Jake Layman, Justin Jackson, and Denzel Valentine.