Jim Harbaugh's injury designation of choice -- questionable. It means there's a 50 percent chance a player will be ready for the following game, and because of that it keeps everyone, including the upcoming opponent, guessing. If Harbaugh could list his entire squad as questionable, he would.
In Patrick Willis' case, however, it's an accurate designation. The 49ers inside linebacker missed last week's game against the Rams with a groin injury and he's been limited in practice this week. The inside linebackers will be a critical component of Sunday's game against the Texans. And yet the 49ers would be unwise to play Willis if they thought there was a chance he'd exacerbate the injury and miss additional time.
That is, Willis is a true game-time decision.
Out: WR Quinton Patton (ffoot)
Questionable: CB Nnamdi Asomugha (knee), T Anthony Davis (shoulder), TE Vernon Davis (hamstring), DT Ray McDonald (ankle, ankle), RB Bruce Miller (quadricep), CB Carlos Rogers (knee), DT Justin Smith (shoulder), LB Patrick Willis (groin)
Probable: TE Demarcus Dobbs (calf), G Mike Iupati (shoulder), T Joe Staley (hamstring, ankle), WR Kyle Williams (knee)
Out: G Brandon Brooks (toe), LB Tim Dobbins (hamstring)
Questionable: T Duane Brown (toe), WR Andre Johnson (shin)
Probable: LB Bryan Braman (hamstring, shoulder), LB Brian Cushing (concussion), TE Owen Daniels (knee), RB Arian Foster (thumb, back), TE Garrett Graham (hip, groin), RB Greg Jones (foot, groin), CB Johnathan Joseph (not injury related), CB Brice McCain (knee), C Chris Myers (biceps), T Derek Newton (knee), S Eddie Pleasant (hamstring), WR DeVier Posey (achilles), S Ed Reed (hip, abdomen), LB Darryl Sharpton (foot, hip), G Wade Smith (knee), RB Ben Tate (shoulder), DE J.J. Watt (groin, nose)
-- Matt Barrows