Boston Celtics jersey history No. 27 - Daniel Theis (2017-21, 2022-23)

The Boston Celtics have utilized 68 different jersey numbers throughout their history, worn by over 500 players since the team's founding in the BAA (predecessor to the NBA). To commemorate this history, Celtics Wire is documenting every jersey number and the players associated with them, noting that 25 numbers are now retired to honor legendary Celtics players.

The article specifically focuses on Daniel Theis, the 12th of 13 players to wear jersey No. 27 for the Celtics. After beginning his professional career overseas and going undrafted in the 2013 NBA Draft, Theis signed with Boston in 2017 for his first stint. This initial period ended when he was traded to the Chicago Bulls in 2021. He later played for the Houston Rockets before being traded back to the Celtics in 2022 for the remainder of the 2021-22 season. He was subsequently traded to the Indiana Pacers in 2023.

Throughout his time playing for the Boston Celtics, Daniel Theis exclusively wore jersey No. 27. During his Celtics tenure, he averaged 7.3 points, 4.8 rebounds, and 1.3 assists per game.