Last year's winner More of That and runner-up Annie Power are among the 36 entries for the World Hurdle at the Cheltenham Festival in March.
The Jonjo O'Neill-trained seven-year-old beat his Irish rival by a length and a half last March.
But he surrendered his unbeaten record when third to Medinasin in the Long Distance Hurdle at Newbury in November and subsequently had a wind operation.
The race over three miles takes place on Thursday 12 March.
Annie Power, who has not run this season after a setback in November, is one of eight entries for Willie Mullins, while the 17 Irish-trained entries also feature Lieutenant Colonel for Sandra Hughes and Monksland from the Noel Meade yard.
Zakander is one of two entries for Paul Nicholls while hopes are also high for Harry Fry's Rock on Ruby and the Nicky Henderson trio of Beat That, Whisper and Blue Fashion.
Ladbrokes World Hurdle, Thursday 12 March
(Horse, Age, Owner, Trainer)
ABBYSSIAL (IRE)5Violet O'LearyWillie Mullins IRE
ANNIE POWER (IRE)7Susannah RicciWillie Mullins IRE
AT FISHERS CROSS (IRE)8J P McManusRebecca Curtis
AUBUSSON (FR)6Jane WilliamsNick Williams
BACK IN FOCUS (IRE)10Andrea & Graham WylieWillie Mullins IRE
BEAT THAT (IRE)7Michael BuckleyNicky Henderson
BIG EASY (GER)8Terry WarnerPhilip Hobbs
BLAKLION6Sarah Such & CG PalettaNigel Twiston-Davies
BLUE FASHION (IRE)6John & Barbara CottonNicky Henderson
BOG WARRIOR (IRE)11Gigginstown House StudTony Martin IRE
BRIAR HILL (IRE)7Andrea & Graham WylieWillie Mullins IRE
COLE HARDEN (IRE)6Jill Eynon & Robin EynonWarren Greatrex
DEDIGOUT (IRE)9Gigginstown House StudTony Martin IRE
JETSON (IRE)10G McGrath/Mrs Moira McGrathJessica Harrington IRE
KING OF THE PICTS (IRE)6Thistle Bloodstock LimitedPat Shanahan IRE
KITTEN ROCK (FR)5J P McManusEdward O'Grady IRE
KNOCKARA BEAU (IRE)12Alistair CharltonGeorge Charlton
LIEUTENANT COLONEL6Gigginstown House StudSandra Hughes IRE
MONKSLAND (IRE)8Patricia HuntNoel Meade IRE
MORE OF THAT (IRE)7J P McManusJonjo O'Neill
OLOFI (FR)9McNeill FamilyTom George
PONT ALEXANDRE (GER)7Susannah RicciWillie Mullins IRE
REVE DE SIVOLA (FR)10Paul Duffy Diamond PartnershipNick Williams
RIGOUR BACK BOB (IRE)10D Chapman-Jones, J McIntyre, J CarrollMark Bradstock
ROCK ON RUBY (IRE)10The Festival GoersHarry Fry
RULE THE WORLD8Gigginstown House StudMouse Morris IRE
SAPHIR DU RHEU (FR)6The Stewart FamilyPaul Nicholls
SEEYOUATMIDNIGHT7Mrs A M ThomsonSandy Thomson
THOUSAND STARS (FR)11Hammer & Trowel SyndicateWillie Mullins IRE
TIGER ROLL (IRE)5Gigginstown House StudGordon Elliott IRE
UN ATOUT (FR)7Gigginstown House StudWillie Mullins IRE
UN TEMPS POUR TOUT (IRE)6Professor Caroline Tisdall & Bryan DrewDavid Pipe
VOLNAY DE THAIX (FR)6Judy WilsonNicky Henderson
WHISPER (FR)7Walters Plant Hire LtdNicky Henderson
ZAIDPOUR (FR)9Susannah RicciWillie Mullins IRE
ZARKANDAR (IRE)8Chris Giles & Potensis Bloodstock LtdPaul Nicholls