We've got the final injury report for the week and we have official word that Michael Lewis is out. Strap yourself in for a big heaping of Mark Roman. Also, Brian Cushing and Mario Williams are listed as questionable, but seem to be expected to play. 49ersOutS Reggie Smith (groin)SS Michael Lewis (concussion)QB Nate Davis (illness) ProbableRB Frank Gore (ankle, foot)DE Ray McDonald (ankle)CB Marcus Hudson (shoulder)CB Tarell Brown (illness) TexansOutS Nick Ferguson (knee) Question...