Aidan O'Brien has yet to finalise running plans for the Juddmonte International at York next Tuesday.
With Harbinger out of the equation after suffering a career-ending leg injury, Rip Van Winkle is favourite across the boards for the Group One contest and the trainer is certainly eyeing up a trip to the Knavesmire.
Irish Derby winner Cape Blanco, a distant second behind Harbinger in the King George VI and Queen Elizabeth Stakes, is another Ballydoyle inmate under consideration for the race.
"We're looking at the Juddmonte with both Rip Van Winkle and Cape Blanco but it hasn't been decided whether we will run one or both," said O'Brien.
"They are both in good form and ready to run, we're just waiting for everyone to decide. It's not definite by any means - we have the Juddmonte and then the Irish Champion a couple of weeks later.
"We're looking at the Juddmonte with Rip Van Winkle - we're hoping he's going to turn up, we just haven't confirmed it definitely with everyone yet."