The 11-year-old Tiger Roll was not among the declarations for Easter Monday's BoyleSports Irish Grand National at Fairyhouse.
The two-time Grand National winner will now be facing 13 other top-class chasers across a shorter three miles and a furlong at Aintree.
He will have plenty of high-profile competiton in the Betway Bowl including Paul Nicholls' Clan Des Obeaux, Colin Tizzard's Gold Cup winner Native River and Ruth Jefferson's Waiting Patiently
Venetia Williams has both Aso and Cepage in the reckoning, while Tom George could put his faith in Clondaw Castle.
Top Notch and Mister Fisher - another who would be going up in distance - may represent Nicky Henderson, and Nicholls has a potential second string in Real Steel.