Blankenship made 11 tackles (five solo) in the Texans' 34-30 loss to the Cowboys on Sunday.
Blankenship played 73 defensive snaps in the contest, 94 percent of the Texans' total defensive plays. The 27-year-old also played four special-teams snaps in the losing effort. The strong safety's 11 tackles were second to outside linebacker Jake Hansen's 12.