Even though there was no talk during the week about Watt possibly missing a game for the first time this season, he was limited in practice on Wednesday, Thursday and Friday before the final injury report was published.
Watt missed nine snaps in the Texans' 34-17 victory over the Tennessee Titans on Monday night, but six of those came when AFC South-leading Houston (8-3) removed several starters late in the game.
There was no indication that Watt was in any discomfort as he stood on the sideline in the final minutes of the game, for which he was selected AFC Defensive Player of the Week after having 1.5 sacks against Titans quarterback Marcus Mariota and forcing a fumble.
The 29-year-old Watt, who was selected as NFL Defensive Player of the Year in 2012, 2014 and 2015, underwent back surgery twice and missed all but three games in 2016, and last season underwent surgery for a broken left leg and missed the last 11 games.
Rookie wide receiver Keke Coutee, who has been bothered by a hamstring injury all season, is the only other Texans player listed as questionable. He aggravated the injury against the Titans and was limited in practice all week.