Istabraq will face 14 rivals in tomorrow`s Smurfit Champion Hurdle at Cheltenham.
Aidan O'Brien's charge heads the Irish contingent with Chimes At Midnight, Ansar, Liss A Paoraigh, Penny Rich and Rostropovich also set to run.
There were no shock defectors at the final declaration stage for the opening day`s blue riband event.
Paul Nicholls` Azertyuiop has not been declared for the two-mile event and Brother Joe, from Philip Hobbs` yard will also miss the contest, probably in favour of a run in Wednesday`s Coral Eurobet Cup or the Bonusprint Stayers` Hurdle on Thursday.
Martin Pipe will be doubled-handed in the race with both Valiramix and Mr Cool in the line-up, while Nicky Henderson will run Landing Light and Geos.
Francois Doumen will send Bilboa to represent France.
There are no surprise withdrawals from any of the other major races on the opening day.
A full field of 28 horses has been declared for the Gerrard Supreme Novices` Hurdle where the Irish contingent will be hoping Like-A-Butterfly can get them off to a winning start.
Ferdy Murphy has left his promising chaser Truckers Tavern in the Irish Independent Arkle Challenge Trophy.
The seven-year-old, a heavy ground specialist, will be one of the 12 horses that go to post for the two-mile race.
Seebald, Barton and Irish challengers Youlneverwalkalone and Moscow Flyer head the rest of the field.
Racing Post Chase winner Gunther McBride is among the 23 runners for the William Hill National Hunt Handicap Chase.
The list of challengers are headed by progressive chasers Carryonharry, Frenchman`s Creek and Gola Cher.
There are also bumper fields for the later races with 24 horses left in the Fulke Walwyn Kim Muir Cup Handicap Chase and the full 24 set to line up in the Pertemps Final Handicap Hurdle.
Nicky Henderson`s horse The Bushkeeper is an early favourite to take the amateurs event while Calladine from the yard of Christy Roche heads the market for the Pertemps race.