Moore, a sixth-year veteran and an alternate Pro Bowl selection two years ago, has 235 solo tackles and 14 interceptions in 62 career games.
The Falcons' injury report lists Moore and No. 3 receiver Harry Douglas (foot) as probable for Sunday's game against Arizona.
Starting receiver Roddy White (ankle) is questionable after missing practice all three days this week.
Atlanta (4-7) has lost six of its last eight games. Arizona (9-2) won six in a row before losing last week at Seattle.