Gibbs (hamstring) isn't practicing Wednesday, Justin Rogers of The Detroit News reports.
Gibbs' absence to begin Week 6 prep isn't a major surprise after he was added to the injury report last Friday, downgraded from "questionable" to "doubtful" Saturday and then made inactive ahead of this past Sunday's win over Carolina. Unless he can fit in some on-field activity Thursday or Friday, he'll be in danger of sitting out another game when the Lions travel to Tampa this weekend.