Flag Of Honour is one of three runners for Aidan O'Brien in the Comer Group International Irish St Leger at the Curragh on Sunday.
The Ballydoyle handler has saddled four previous winners of the one-mile-six-furlong Classic, with Yeats (2007), Septimus (2008) and the recently-retired dual victor Order Of St George (2015 and 2017) all on the roll of honour.
Flag Of Honour is the likely favourite for this year's renewal following successive course-and-distance victories in the Curragh Cup and the Irish St Leger Trial.
O'Brien also saddles Idaho and and Cypress Creek, while his son Joseph sends Irish Derby hero Latrobe into battle on home soil instead of sending him to Doncaster for Saturday's St Leger.
Jim Bolger's Twilight Payment and John Gosden's British challenger Weekender complete the six-strong field.
O'Brien is also mob-handed in the Goffs Vincent O'Brien National Stakes, a race he has won on 11 previous occasions.
Futurity Stakes victor Anthony Van Dyck appears his chief contender ahead of stable companions Christmas, Land Force and Mohawk.
Fozzy Stack runs Highland Fortune and Wargrave, but perhaps the biggest threat to the O'Brien team is Charlie Appleby's dual Newmarket winner Quorto, who was seriously impressive in the Superlative Stakes on his second start.
Ten juvenile fillies have been declared for the Moyglare Stud Stakes.
Patrick Prendergast's Skitter Scatter sets the standard after winning the Debutante Stakes three weeks ago.
O'Brien's three runners are Hermosa, Just Wonderful and Zagitova.
There are two British-trained contenders, with Appleby saddling Beyond Reason, who has won her last two starts at Pattern level in France, and Mark Johnston sending the four-times winner Main Edition.
Michael O'Callaghan's Angelic Light, Bolger's pair of Bandiuc Eile and Smart Flies and Sheila Lavery's star filly Lady Kaya are the other hopefuls.
The first of four Group Ones on the second day of Irish Champions Weekend is the Derrinstown Stud Flying Five Stakes.
Karl Burke's Havana Grey and the David Griffiths-trained veteran Take Cover are the two British raiders in a field of nine sprinters, while Battle Of Jericho, Sioux Nation and Different League all represent O'Brien.
Stack's Son Of Rest, Darren Bunyan's Hit The Bid, Henry de Bromhead's Gorane and Now You're Talking from Joseph O'Brien's yard are all in the mix.