War Command could wear blinkers
War Command could be fitted with blinkers in the Tattersalls Irish 2,000 Guineas on Saturday week.
Last year's Dewhurst Stakes winner was supported ante-post for the Qipco 2000 Guineas at Newmarket earlier this month, but finished ultimately well beaten in ninth.
Ryan Moore reported the American-bred colt raced lazily during the one-mile contest and O'Brien will considering using some headgear at the Curragh on Saturday week.
O'Brien said: "There is a chance we'll put blinkers on him to wake him up a bit and there is a chance he could run in them.
O'Brien is also likely to be represented in the following afternoon's Etihad Airways Irish 1,000 Guineas, with Palace among those under consideration following a good run in defeat at Leopardstown on Sunday.
The trainer told the stewards prior to her appearance in the Derrinstown Stud 1,000 Guineas Trial the filly was showing signs of coming into season in the parade ring, but she ran with plenty of credit, going down by just a head to Afternoon Sunlight.
O'Brien said: "When we were tacking her up she was showing plenty of signs of being in season. Joseph said she was lying back on the stalls and when they broke she raced lethargically.
"I'd say she's not too bad and we'll look at the Irish 1,000 Guineas."
The Irish Guineas is among a number of options for Terrific, who O'Brien is confident will bounce back from a disappointing run in last week's Cheshire Oaks at Chester.
He said: "She got a little bit back and she tends to be shy and get intimidated. That's why she wore the hood.
"She should probably leave that run behind."