Buckner (ankle) had his initial X-rays come back negative, and his injury is considered to be a sprain, Joel A. Erickson of The Indianapolis Star reports.
Buckner was carted off the field in the second half of the Colts' 16-10 loss to the Packers, but he appears to have avoided a fracture in his ankle. The defensive lineman is expected to undergo an MRI to determine the severity of the sprain in the near future.