Parish Hall has his first ever start on the all-weather at Dundalk when he lines up in the Group Three Diamond Stakes.
Jim Bolger's former Dewhurst Stakes hero missed the whole of his three-year-old season, but has come back this term in good form, landing a Listed race at the Curragh and finishing fourth in the Irish Champion Stakes.
He looks the one to beat, though Aidan O'Brien's Afonso De Sousa returned from over a year off the track to score over course and distance last time, and British raider Prince Alzain travels over after running out of steam over 12 furlongs at Kempton.
Bolger pitched Intense Debate into Group Three company for her debut and she acquitted herself well enough to suggest the Irish Stallion Farms EBF Median Auction Fillies Maiden could be well within her compass.
Chief opposition comes from Dermot Weld's Galway fourth Backdrop, and John Oxx's Alafzara, who showed some progression from her debut when fourth at Listowel.
Bolger also runs newcomer Amber Grain in the Irish Stallion Farms EBF Auction Maiden, which gets the meeting under way at 5.40.
She looks the pick of the newcomers in the race, though Aussie Valentine picked up nicely once the penny dropped on his debut and could put that experience to good use.
O'Brien gives Cristoforo Colombo another crack at six furlongs in the Crowne Plaza Race And Stay Race.
Fifth in the 2000 Guineas at Newmarket on his return, he was off the track until flying home late for fifth in a Group Three sprint at the Curragh last month.
Last week's course winner Victor's Beach has a 6lb hike to contend with in the Crowne Plaza Leading Jockey And Trainer Apprentice Handicap, while the Christmas Party Nights At Dundalk Stadium Handicap could be between Bolger's Paene Magnus and O'Brien's Victory Song.