The Rams list Long as dealing with a hip injury that apparently has slowed him as the week has gone on. Long did not appear on the injury report Wednesday, participated on a limited basis Thursday and did nothing Friday.
Rams coach Jeff Fisher said Long's status for Sunday will be questionable but didn't expand.
Fellow defensive end William Hayes, the would-be replacement for Long, said he expects Long to be ready to go in Atlanta.
"Chris is fine," Hayes said. "He’s OK. Yeah, he’s fine. He just needed a day off just to relax. We’ll be all ready to go."
Long has yet to miss a game in his five-plus years in the league.