An MRI on Buckner's knee was negative after he injured the knee
on Saturday night against the Denver Nuggets, but he was too sore
to play against the Hawks.
"We'll re-evaluate him tomorrow," Dallas coach Avery Johnson
said. "You know he's really hurting if he can't go."
Buckner is one of Dallas' top defensive players and averages 4.4
points and 2.1 rebounds per game.
Devin Harris started in Buckner's place, with sixth man Jerry
Stackhouse also getting more playing time.
Also out for the Mavericks was swingman Devean George,
recovering from a sprained ligament in his right knee.