CHARLOTTE — The Panthers started the clock Wednesday for a couple of players to come back from injured reserve.
That move opens a 21-day window for them to practice before they could be placed back on the 53-man roster, though that could happen at any time.
Darnold suffered an ankle injury in the preseason finale against Buffalo on Aug. 26.
He had lost a training camp competition for the starting job to Baker Mayfield, but Mayfield's now dealing with his own ankle injury and didn't play last week. Replacement starter PJ Walker left last week's game with a neck injury and didn't finish, so his status for this week is in some doubt.
Roy was placed on IR after a Week 2 hamstring injury.