Aidan O'Brien confirmed a computer error led to Albert Einstein and Gstaad being mistakenly scratched from the Betfred 2000 Guineas at Newmarket. The highly-touted Albert Einstein, who had topped ante-post lists for the Rowley Mile Classic, disappointed in Saturday's Gladness Stakes at the Curragh, prompting speculation about a potential switch to sprinting.

Gstaad, winner of last year's Coventry Stakes at Royal Ascot and the Breeders' Cup Juvenile Turf, had emerged as O'Brien's leading contender after impressing in a racecourse gallop at the Curragh on Sunday. Both horses were withdrawn from the May 2 showpiece on Tuesday morning, with O'Brien telling the Press Association that connections were working to reverse the error and reinstate the entries.

This unexpected development leaves O'Brien without two of his strongest contenders for the prestigious Classic, significantly altering the race dynamics. The trainer's team is actively attempting to resolve the administrative mistake before the deadline.