Watson was battered and bruised after taking several big hits against the Cowboys, and he's considered day-to-day. He told reporters Wednesday, "I feel good, I feel great," and added that he will play against Buffalo "for sure."
Head coach Bill O'Brien was cagier on his quarterback's status, saying he'd "let the injury report speak for itself." But when asked if Watson has a chance to play, he replied, "Oh yeah." Watson was officially listed as limited in Wednesday's practice.
Watson didn't miss a snap against the Cowboys but he was seen getting treatment on the sideline on multiple occasions, including one member of the medical staff examining him with a stethoscope. He was sacked just once but hit 11 times as a passer, in addition to being tackled in the run game.
He finished the game 33 of 44 for 375 yards, a touchdown and an interception while rushing 10 times for 40 yards. He also led the game-winning drive in overtime, highlighted by a 49-yard gain to DeAndre Hopkins.
Brandon Weeden, who hasn't appeared in a game since 2015, is the Texans' primary backup.
(With inputs from agencies.)