Amelia Earhart leading Oaks challenge for O’Brien

Amelia Earhart appears to be Aidan O’Brien’s leading Betfred Oaks candidate, with Diamond Necklace staying in French Classic action. O’Brien has already won the 1000 Guineas at Newmarket with True Love and the French equivalent on Sunday with Diamond Necklace, who remains unbeaten. But it is the Che