Leading John Smith's Grand National contenders Prince De Beauchene and Seabass clash in the At The Races Bobbyjo Chase at Fairyhouse.
The Willie Mullins-trained Prince De Beauchene was a hugely impressive winner of one of Ireland's biggest National trials 12 months ago, but an injury suffered during the race ruled him out of a trip to Aintree.
However, he appeared as good as ever when winning on his seasonal reappearance over hurdles at Limerick in December.
Mullins told At The Races: "He won last year and came into the winner's enclosure 100%, but by the time he got back up to the veterinary unit he was lame and he just got lamer and lamer. He pulled some type of ligament or something and I hope he can get through that this year.
"He had a nice run over hurdles down in Limerick and was fine afterwards, so let's get the Bobbyjo out of the way and then look to Aintree. The way he did it at Limerick did surprise me a bit, but he had been working well at home.
"He's got plenty of weight (in the National), but he's a huge horse and built to carry it. Taking last year into account, I'm happy if I get him there. I don't want any last-minute problems. He's one to look forward to with his style of jumping and the size and scope that he has."
Among his rivals is Ted Walsh's Seabass, who ran a superb race under the trainer's daughter Katie when third in last year's Grand National. He ran well over hurdles at Fairyhouse on his return earlier this month and aims to enhance his own Aintree claims.
After a slightly disappointing start to the campaign, Colm Murphy's dual Grade One-winning chaser Quito De La Roque looked more like his old self when beating Roi Du Mee comfortably at Thurles a month ago.
Murphy said: "We were delighted with his performance the last day and hopefully if he can reproduce that, he'll run a big race. He's got to give a bit of weight away, but hopefully he's up to it and this race will tell us a lot about where we're going.
"He's in the Gold Cup and the National and there is also the three-mile race at Aintree and Punchestown later on, so we'll see how we go."
24 April 2014War saunters to easy success
Quevega five-timer still on course
Wylie trio go for Gold
Cyclone blows into Punchestown
Rain set to help Punchestown
Rifles aimed at York
Dante considered for Arod
Carpenter faces stamina question
Tonto strives for Sandown scalp
Telescope sights fixed on Sandown
Prize lined up for Greffulhe raid
Celebration time for super Sire
Taghrooda swerves Sandown heat
Concorde checks in for Punchestown
No Sandown run for Oscar
Un De Sceaux to skip Punchestown
Treve among stellar Ascot entries
Charline still in Guineas mix
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Prince in Punchestown frame
Sparrow set for Punchestown spin
Balder to take novice test
Connell eager for Tank chase run
23 April 2014Telescope tops Richards runners
No rush for Annie target
Cosgrave appeal set for Monday
Hughes set for Sandown return
France adds flair to Guineas
Mullins drops Vautour Champion hint
Exciting Bunker given Dante date
Culloty keen on Gold run for Heeled
Hannon triple-handed in Guineas
Resurge revived for Epsom return
Sandown option for Battalion
Johnston pair clash in Derby Trial
Reckless Abandon returns to track
22 April 2014Rizeena delights in Guineas workout
Carberry targets swift return
Williamson escapes serious injury
Rizeena thrills Brittain on gallops
Door bags National glory
Twiston-Davies hits four-timer
Joe suffers shock defeat
Scudamore hits century mark
Ivan lands Fairyhouse prize
Thousand shows star quality
Cirrus set for Treve clash
Houblon heads Gold contenders
Guineas still on Berkshire radar
21 April 2014Door bags National glory
Wilson passes away
Ivan lands Fairyhouse prize
Stepper set for trip drop
Richards in Telescope sights
Ladies geared for Summer repeat
Hill out of Irish National
No Dundeel at Royal Ascot
Clowance up for the Cup
Garner hit with lengthy ban
Memories in Final flourish
Fitz powers home at Fairyhouse
Toner hits target for Elliott
Joe ready for Cork outing
Lennon looking to call tune
Ground holds key to Tonto show
Lucky escape for Cook
Mind called up for National service