Ward (foot) was placed on the active/PUP list Wednesday, Tom Pelissero of NFL Network reports.
Ward missed nine regular-season games for the Texans last season with both a concussion and, separately, a foot injury. Early in the offseason, head coach DeMeco Ryans said the 34-year-old was "doing fine" in the progression of his foot injury, according to Aaron Wilson of KPRC 2 Houston. With injuries limiting him to just 20 regular-season games over the past two campaigns, the team is taking a cautious approach with the veteran safety, but he can return at any point in the preseason should the team deem him ready.