Kubiak, 52, was responsive to medical personnel before he was strapped to a backboard and taken off the field. Kubiak never lost consciousness and did not suffer a heart attack, NFL Media's Steve Wyche reported, per the Texans' media relations staff.
Wyche said Sunday on NFL Network's "NFL GameDay Final" that there seemed to be some sense of relief on the bench that nothing urgent seemed to be in play regarding Kubiak's health.
General manager Rick Smith sounded an optimistic note after the game, telling NBC that Kubiak was stable. All his vital signs were positive. Kubiak was "light-headed" and "dizzy."
"Hopefully Gary is back with us tomorrow," Smith said.