Mick Channon has recruited champion jockey Ryan Moore to ride Lahaleeb in the Boylesports.com Irish 1000 Guineas at the Curragh on Sunday.
The prized mount became available after Darryll Holland failed in his appeal against a 21-day ban which he incurred at Warwick on 9 May.
Lahaleeb, winner of the Fred Darling Stakes on her penultimate start, needs to banish a disappointing effort in the 1000 Guineas at Newmarket, where she finished 10th.
Channon blamed the quick conditions for her no-show at Headquarters and expects an improved performance in Ireland at the weekend.
'Lahaleeb seems well in herself and delighted me in her work with Eva's Request (on Tuesday),' the handler said.
'I think it's fair to draw a line through the English Guineas form as the ground was much too quick and she couldn't let herself down on it.
'With any luck at all, we'll have more suitable conditions at the Curragh.'
Lahaleeb is as low as 7-1 with Paddy Power to win the Irish 1000 Guineas.
The David Wachman-trained Again is now the 11-4 favourite with Paddy Power as speculation mounts that Johnny Murtagh will take the ride.
Last season's Moyglare Stud Stakes winner is owned by Michael Tabor, a member of the powerful Coolmore team.
Paddy Power, spokesman for the bookmaker, said: 'It looks increasingly likely that Johnny Murtagh will ride Again on Sunday with Aidan O'Brien suggesting Heart Shaped may now not run.
'The prospect of the mighty Murtagh being on top has definitely played a big part in punters siding with Again. That, and the fact that Again is a Group One winner who is proven in the sort of conditions we will see on Sunday.
'We have had some support for Super Sleuth and expect to see cash coming for Ryan Moore's mount Lahaleeb, who should appreciate the ground far more at the Curragh than she did when disappointing at Newmarket.'
