Rookie Robensen Therezie, who made the team as an undrafted rookie free agent from Auburn, is set to make his first NFL start on Sunday for the Falcons (3-0) at against the Houston Texans (1-2) at 1 p.m. Sunday at the Georgia Dome.

The Falcons declared free safety Ricardo Allen (knee), returner Devin Hester (toe), running back Tevin Coleman (ribs) and tight end Jacob Tamme (concussion) out.

Therezie has played in each of the past two games for Allen. He played 10 of 68 defensive snaps (15 percent) against the Giants and 8 of 53 snaps (15 percent) against Dallas. He was active for the opener against the Eagles, but did not play.