Last year's first and second Tiger Roll and Pleasant Company are among a record 47 Irish-trained entries for the latest renewal of the Randox Health Grand National at Aintree on 6 April.
With a total prize fund of £1million, the four-mile-two-furlong Aintree spectacular is the most valuable jumps race in the world.
Last season Tiger Roll provided Gordon Elliott with a second Grand National triumph, narrowly denying the Willie Mullins-trained Pleasant Company in a thrilling and Irish-dominated finish.
Elliott is the trainer with the most entries this year - with last year's third Bless The Wings, recent Thyestes Chase runner-up Alpha Des Obeaux and 2018 Irish National hero General Principle among his 22 contenders.
Mullins has nine other entries. These include Irish National runner-up Isleofhopendreams, Rathvinden - winner of the National Hunt Chase at last year's Cheltenham Festival - and Total Recall.
Jessica Harrington has two entries at this stage, useful dual-purpose mare Magic Of Light and Sandymount Duke, who is owned by Rolling Stones guitarist Ronnie Wood.
The most successful current British trainer in the National is Nigel Twiston-Davies, who has won the great race twice and he has nine entered, including Sky Bet Chase winner Go Conquer, Bristol De Mai, Blaklion and Ballyoptic.