Flying The Flag drops back to Listed level from Classic class as he tackles Thursday's Glencairn Stakes at Leopardstown.
Aidan O'Brien's Galileo colt was beaten just over three lengths in the French 2000 Guineas before failing to sparkle in the Irish equivalent.
He then found the step up to a mile and a half beyond him in the Derby at Epsom, finishing six lengths adrift of the winner Ruler Of The World, and both the switch back to a mile and a dip in class should aid his cause.
The Coolmore team have a second string to their bow in the David Wachman-trained Cougar Ridge, who has his start since October, while Dermot Weld's mare Along Came Casey is another who returns after a long absence, although she ran Queen Anne hero Declaration Of War close on her most recent outing.
Oklahoma City will try to repay a small fraction of his 675,000-guineas price tag when he lines up for Coolmore in the opening Irish Stallion Farms EBF Maiden
The Oasis Dream colt faces a tough introduction though, with Sudirman and Shining Emerald bringing decent form to the table.
Jim Bolger's Scintillula was Group One-placed last term but she remains winless and attempts to put the record straight in the Irish Stallion Farms EBF Fillies Maiden.
Her stable companion Morning With Ivan tries to defy a penalty for Sunday's Cork triumph in the Leopardstown Summer Music And Racing Festival Handicap.
Last week's course and distance winner Edith Cowan also has a 5lb penalty to contend with in the Hudson Taylor Handicap, but Gowran Park scorer Pepparpot has had a bit of a break to recover from his exertions and now takes in the Leopardstown Club Members Handicap.
Pride Of The Artic has lost his way since landing a Tipperary Grade Three over fences back in October and now tries his luck on the Flat in the Follow Leopardstown On Facebook (QR) Maiden.