"I should have sat out practice yesterday," said Mourning, who was averaging 25.9 minutes a game.
He sat out practice yesterday and was scheduled to play against Minnesota despite the injury.
Peterson sat out practice again today and was sent for testing.
Gill sat out today's practice to rest his back, but will be back to play on Friday, the coach said.
Barkley sat out practice yesterday but said he was leaning toward playing.
He often sat out practice last season because of knee soreness.
Ewing sat out today's practice with a cold, but he is expected to play against Atlanta.
Larry Johnson sat out practice yesterday with flu symptoms but will probably start.
Gill sat out today's practice because the knee was sore, but he should play Monday.
He was injured in the final exhibition game and sat out practice all week with a bruised chest.