Butler's Cabin provided JP McManus with a memorable success in the 2007 Irish Grand National at Fairyhouse and the leading owner runs six horses in an attempt to win it again.
Tony McCoy faced the difficult choice but he has plumped for the Nicky Henderson-trained novice Quantitativeeasing, who was second to Divers in the Centenary Novices' Handicap Chase at Cheltenham.
‘I'm not sure if we ran him in the right race at Cheltenham. We ran him over two and a half and now we are going three and a half,’ Henderson told At The Races.
‘He's related to Asian Maze and she stayed really well. He's a novice, so it remains to be seen how he'll take to a race such as this. He'd been progressing well before Cheltenham, though.’
Frank Berry, McManus' racing manager, added: ‘It's a wide open race but all six of ours have some sort of chance.
‘Quantitativeeasing ran well at Cheltenham and has a bit of current form and might progress a bit more.
‘Quiscover Fontaine hasn't had much racing this year but was an exciting novice last year. He was a bit unlucky when he fell at Thurles last time. He's well and Willie (Mullins) is happy with him.
‘Synchronised ran a blinder at Uttoxeter and has come out of the race very well. He's got top weight and would prefer a bit more cut in the ground, though they've done a great job with the watering.
‘Sunnyhillboy has threatened to win one of these big handicaps and has run well around Cheltenham a few times, although he fell at the Festival. It's a step up in trip for him but he's in good form.
‘See U Bob and Glenstal Abbey also take a chance. The trip is a step into the unknown for them but they are both in good form. It's a big prize so they'll take their chance.’
