Players who don't practice all week usually don't play on Sunday under Harbaugh. However, Harbaugh said all week that Rice could play whether he practices or not, and he said the same about Canty today.
"The guys that have played a lot of football here, know the offense and we're with them every day on the inside in terms of understanding what guys know," Harbaugh said. "When guys like that don't play because they haven't practiced, it's because they are not ready physically. It's not because we have some kind of rule around here. It has to do with how ready a guy is to play."
For the Texans, safety Ed Reed (hip), starting left tackle Duane Brown (toe) and tight end Garrett Graham (hip/groin) are all questionable. Wide receiver Andre Johnson, who sustained a concussion in the Texans' last game, is probable.