Johnny Murtagh in awe of all-conquering Aidan O'Brien

Johnny Murtagh hailed Aidan O'Brien as a "genius" after Ireland's champion trainer monopolised a Group One race for the third time in a week.

Murtagh, the former Irish champion jockey and now a successful trainer, saluted the achievements over the past week, but was not surprised as O'Brien has been such a king of the sport for years.