Blankenship is being evaluated for a possible concussion and is questionable to return to Sunday's game against Jacksonville.
Blankenship took a hit to the head late in the first half and was carted to the locker room, where he will be evaluated by medical staff to determine whether he can return to Sunday's game. M.J. Stewart will fill in at safety alongside Calen Bullock for as long as Blankenship is out of the contest.