What happened: Dallas opened Houston prep with cornerback Cobie Durant (hamstring), linebacker Demarvion Overshown (hamstring) and Shavon Revel Jr. (knee) not practicing. Safety Malik Hooker (forearm) worked in limited fashion, while Houston had wide receiver Nico Collins (knee) limited and linebacker Azeez Al-Shaair (groin) sidelined.

Why it matters: Dallas enters the matchup at 1-2 with depth stretched across the secondary. A short-handed back end faces added strain against Houston's lead receiver if his participation builds through the week.

What to watch: Both teams update participation Thursday and Friday before final game designations.