Lions QB Matthew Stafford was held out of practice on Wednesday to rest his ailing knee and is a question mark for Sunday against the Steelers at home.

That’s because head coach Jim Schwartz’s only comment on the matter was: “We’ll see on Sunday. … I don’t want to set any hard-set rules."

Stafford, on his Twitter account, took it only slightly further, writing: “game-time decision I think.”

Stafford was injured on a fourth-quarter sack by Bears DE Adewale Ogunleye in which his knee twisted, causing a subluxation (or a dislocation) of his kneecap before it was put back in place.