Hawks coach Larry Drew said leading scorer Josh Smith has a strained right hip flexor and will not play against the Indiana Pacers on Saturday night.
Smith was injured on Friday in the Hawks' 102-94 victory at Cleveland. He is averaging 16.6 points. Smith's 8.2 rebounding average is second on the team behind center Al Horford.
Atlanta was without guards Devin Harris, who missed his sixth straight game with a sore left foot, and Anthony Morrow, who left the Cavaliers game with a strained right hip.
Horford started against Indiana despite a right hip contusion.
Pacers coach Frank Vogel said that guard George Hill started despite a strained right groin. Indiana reserve Sam Young has the flu and did not travel with the team.