For the second straight day, left tackle Duane Brown was not on the practice field with his teammates. Tight end Garrett Graham also didn't practice.
Brown has a sprained toe that he suffered in the win over Tennessee. Graham is nursing a hip injury.
"He got a hip pointer about a few weeks ago, missed a little time in practice in the preseason
and his hip got sore on him," head coach Gary Kubiak said. "He took all of the reps in practice yesterday and his hip got sore on him."
Kubiak was cautiously optimistic that Graham would return to practice on Friday, and said "hopefully he's back out there tomorrow."
Graham has caught a touchdown in each of the Texans' first two wins, and has seven catches for 57 yards in 2013.
Brown, meanwhile, hasn't been ruled out for Sunday's game at Baltimore.
"Like I told you yesterday, I have no problem, Duane can play football without practicing," Kubiak said. "He's played a lot of snaps. He knows our offense better than anybody. We've left him inside and we'll just push toward the weekend and see where he's at."