What this means is that Ellis was not ready to practice upon signing with the team Monday. He can resume practicing at any time, and still counts against the 90-man roster limit while on the active/PUP list.
If Ellis does not resume practicing by the final cutdown to 53 players, the team would have the option of placing Ellis on the reserve/physically unable to perform list, which would sideline him for at least the first six weeks of the regular season.
Patriots coach Bill Belichick said that he believes veteran defensive lineman Albert Haynesworth isn't far from returning to practice. Haynesworth has missed the team's past three practices and hasn't taken the field for Tuesday's session.
"I'd put him in the 'day to day' category; he's getting some treatment," Belichick said. "I think he'll be back out there as soon as he can. I think he's working really hard. Hopefully he'll be back out there in a matter of hopefully a day or matter of days."
Asked if he cared to illuminate on the treatment that Haynesworth and Ellis are undergoing, Belichick simply said they are day to day.
Overall, when assessing the team's recovering players who aren't on the physically unable to perform or non-football injury lists, Belichick said, "I don't think we have a lot of guys that we won't see until October or November or that kind of thing."
Belichick said it's "probably right" to assume that if players aren't practicing that they won't play in Thursday's preseason opener.
Mike Reiss covers the Patriots for ESPNBoston.com.