Ante-post favourite Faugheen heads 23 entries for the Stan James Champion Hurdle, the highlight on the opening day of the Cheltenham Festival on 10 March.
The Willie Mullins-trained seven-year-old is the even-money favourite with the sponsors after extending his unbeaten record in the Grade One Christmas Hurdle at Kempton Park on 26 December.
Among Mullins' six other entries is Hurricane Fly, the winner in 2011 and 2013, while last year's hero Jezki, from Jessica Harrington's stable, also features in a list which is littered with star names.
As well as Faugheen and Hurricane Fly, Mullins has Annie Power, Vautour, Un De Sceaux, Arctic Fire and Diakali still engaged at this stage.
The 12-strong Irish-trained entry also features last season's JCB Triumph Hurdle winner Tiger Roll, trained by Gordon Elliott, and Kitten Rock from Edward O'Grady's stable, who wears the JP McManus colours of Jezki.
"I have been pleased with Kitten Rock and the plan is to run him in the Limestone Lad Hurdle at Naas on Saturday," said O'Grady.
"I would like to bring him to Cheltenham if he proves he is up to it.
"We have also put him in the World Hurdle but, if he goes to the Festival, I would prefer to run in the Champion Hurdle.
The Irish-trained entry is completed by Colin Bowe's Little King Robin and the Aidan O'Brien-trained Plinth.
The New One, second favourite in the ante-post market, will try to improve upon his third last term, when he finished with a flourish after being badly hampered.
Trained by Nigel Twiston-Davies, the seven-year-old confirmed himself as the leading British hope with a convincing victory over Vaniteux in the International Hurdle at Cheltenham last month.
The New One is set to have his prep run for the Festival in the StanJames.com Champion Hurdle Trial at Haydock on Saturday.
Vaniteux's trainer Nicky Henderson also has Sign Of A Victory as the Seven Barrows trainer goes for a sixth success in this race.
Paul Nicholls is represented by Fighting Fifth Hurdle winner Irving and Calipto, while John Ferguson has put in Purple Bay, who claimed the Elite Hurdle at Wincanton and was runner-up to Faugheen at Kempton.
