Texans rookie offensive tackle Tytus Howard is doubtful for Sunday's game against the Patriots with a knee injury.
The top backups to replace him at right tackle are Chris Clark and Roderick Johnson. Howard missed time earlier this season with a sprained MCL.
Defensive end Carlos Watkins is out with a hamstring injury. Brennan Scarlett, Gareon Conley and Angelo Blackson are questionable.
McCLAIN'S MAILBAG: Texans-Patriots, play-calling and NRG roof
Bradley Roby, Lonnie Johnson Jr and Will Fuller were all full participants and set to play Sunday night along with safety Justin Reid.