Rhyan was diagnosed with a high ankle sprain and is expected to miss at least one month, Matt Zenitz of CBSSports.com reports.
Rhyan was injured in Sunday's loss to the Lions. To make matters worse, Jacob Monk (quadriceps) landed on injured reserve Monday, meaning the Packers may continue to rely on John Williams, the 2025 No. 250 overall pick, to fill the void at the center position for the foreseeable future.