Veracious, who was due to be the mount of Frankie Dettori, is ruled out of the 1,000 Guineas at Newmarket on 6 May.
Willie Mullins will be hoping the seven-time grade one winner can help him retain the Irish trainers' championship.
Joe Farrell, ridden by Adam Wedge, holds off the challenge of Ballyoptic and Tom Bellamy to win the Scottish Grand National.
Jockey Ruby Walsh will miss Irish jump racing's showpiece Punchestown Festival which takes place next week.
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