Lions' Sione Vaki: Deemed questionable

Vaki (thumb) is questionable for Thursday's game versus the Cowboys.

Vaki appeared to pick up a thumb injury during last week's loss to the Packers, putting his status in jeopardy ahead of a crucial game versus the Cowboys. If Vaki -- who has played just two offensive snaps this season -- sits out, Jacob Saylors will serve as the No. 3 running back behind Jahmyr Gibbs and David Montgomery.