Johnson (rest) has been ruled out for Thursday's preseason game against San Antonio, Brad Rowland of the Locked On Podcast Network reports.
Johnson will sit out Atlanta's second preseason game after posting eight points (1-7 FG, 0-3 3Pt, 6-6 FT), five rebounds, three assists and one steal in 18 minutes during Monday's loss to Memphis. His next chance to play in the preseason will come against Indiana on Saturday.