While O'Brien's premier stayer Kyprios, who won a sixth G1 at Goodwood on Tuesday, is too highly rated for connections to even contemplate a Cups tilt, Bloodworth said the G2 Curragh Cup quinella of Tower Of London and Grosvenor Square will likely be entered for the Melbourne Cup.
He said Jan Brueghel, an untapped three-year-old who was most recently seen winning a G3 over 2000m, could also feature among the Cups entries for the powerful stable.
O'Brien already boasts a Cox Plate on his mantlepiece via the 2014 win of Adelaide and Bloodworth confirmed the trainer is eyeing another win in the coveted weight-for-age race with Diego Velasquez.
The son of Frankel shot to $15 in Sportsbet's Cox Plate market after his last-start romp in the Meld Stakes at Leopardstown and, provided he performs well in Friday's Saratoga Derby (1900m), Bloodworth said the stable's plan for the second half of the year includes a potential trip to Melbourne.