Redskins coach Jay Gruden told reporters he thought Allen could use an extra day of rest coming off a "significant injury."
"No setback," he said. "We thought it was better for him to stay in today, rest it and see how it is tomorrow."
Gruden said Allen's rest day didn't have anything to do with the Redskins having an extra day before playing this week, as they're slated to host Chicago on Monday night.
"No. He had a significant injury, now," said Gruden. "We're making sure he's gonna be okay before he starts individual drills in practice. We thought today, another day of rest for him would be better suited for him than going out and practicing."
Allen does not appear to be ruled out for Monday's game just yet. "It's important that we get him back and hopefully we will this week," said defensive coordinator Greg Manusky.
While it's unclear where Reed is in the concussion protocol, it is clear Gruden is tired of discussing it.