In 45 games (seven starts) this season, Sefolosha is averaging 5.1 points, 4.3 rebounds and 1.5 assists in 19 minutes per game.
The eight-year veteran was acquired in a sign-and-trade deal with the Oklahoma City Thunder in July. Sefolosha spent the previous six seasons with the Thunder, becoming a regular starter and making three Western Conference finals, including one NBA Finals appearance in 2011-12.
The Hawks won a franchise-record 19th straight game on Saturday, defeating the Philadelphia 76ers 91-85. In addition to Sefolosha, Carroll and guard Shelvin Mack (left calf strain) also sat out the game.
The Hawks have the NBA's best record at 40-8 and hold the Eastern Conference's top spot by seven games over the Toronto Raptors.
- Mike Fiammetta