Last year's winner Brown Panther and the unbeaten Forgotten Rules are two of the star names among 48 entries for the Palmerstown House Estate Irish St Leger at the Curragh on September 13.
The Tom Dascombe-trained Brown Panther kicked off the new campaign with a terrific triumph in Dubai and was only narrowly denied by Snow Sky on his return to European action in the Yorkshire Cup earlier this month.
Snow Sky is also among the 13 potential British challengers, as is his stable companion Gospel Choir, Marco Botti's Tac De Boistron and Ed Dunlop's globetrotter Red Cadeaux.
Forgotten Rules is one of seven entries for Dermot Weld as the master of Rosewell House bids to win the Irish Leger for an eighth time.
The Ascot Gold Cup favourite is joined by the likes of Windsor Park, Good Tradition and Vintage Nouveau.
Aidan O'Brien won the race with Yeats in 2007 and again with Septimus 12 months later and he has a team of 11 entered this time around. Giovanni Canaletto, Diamondsandrubies, Hans Holbein and Together Forever are just some of the familiar names that could represent Ballydoyle.
Other notable entries include the Ken Condon-trained Success Days, Jim Bolger's Irish 1,000 Guineas winner Pleascach and the rapidly improving Curvy, trained by David Wachman.
Paul Hensey, general Manager of the Curragh, said: "The Irish St Leger is the feature race on day two of Irish Champions Weekend and Brown Panther's win last year was undoubtedly one of the highlights of the weekend.
"This year's race has once again attracted a top-class entry."