Stafford was scheduled to undergo an MRI on Monday to determine the severity of a strained muscle in his right leg, an injury that forced him out of Sunday's 44-41 loss to the Tennessee Titans. Schwartz tightly limits the flow of injury information, and speaking to reporters Monday, he said he had nothing to share and that Stafford's status won't be determined until Friday.
The Lions will host the Minnesota Vikings on Sunday at Ford Field and then have a bye week. NFL teams will sometimes try to grab two weeks of rest, with only one game missed, around their bye, but there's no telling at this point if the Lions are considering that approach with Stafford.
Backup Shaun Hill had a near-perfect relief performance after Stafford departed late in the fourth quarter and would start against the Vikings if Stafford does not. The Lions also have rookie Kellen Moore on their roster; he has been inactive for each of the first three games.