Update (Tuesday, 9:55 AM ET): Testing confirmed Packers C Sean Rhyan has a high-ankle sprain that will likely sideline him at least a month, according to Mike Zenitz of CBS Sports.
Update (Monday, 10:05 AM ET): Coach Matt LaFleur said he wasn't expecting to have Rhyan for Thursday's game against the Panthers, according to Rob Demovsky of ESPN.
Packers C Sean Rhyan, who left Sunday's game with an ankle injury, is believed to have suffered a high-ankle sprain, according to Ian Rapoport of NFL Network. X-rays were negative, and he has an MRI on Monday. High-ankle sprains are often 4-6 week injuries.
Our Take: The short week makes this worse. Green Bay faces the Panthers on Thursday night coming off a 20-17 loss to the Lions in which it missed two field goals and squandered several red-zone chances.