Estrada (leg) isn't expected to play in Thursday's preseason game against the 49ers, Aaron Wilson of ProFootballNetwork.com reports.
Since he began to miss practice Aug. 9 due to a leg injury, Estrada hasn't taken any visible reps on the field and now will miss the entire preseason slate. The health concern likely means he's on the outside looking in as the Texans face down cut-down day Tuesday.