Bucker (ankle) was a limited participant during practice Wednesday.
Buckner was designated to return from injured reserve earlier Wednesday, opening up his 21-day practice window. Whether he'll be able to suit up Sunday against the Texans remains in question and probably won't be known until closer to kickoff. It is likely, though, that the Colts will want the Oregon product to log a full practice before sending him out on the field for game day.