There may be plenty of questions nagging trainer Steve Asmussen about Curlin’s Breeders’ Cup Classic title defence at Santa Anita on Saturday, but for most of those outside his barn, the superstar has all the answers.

Richard Gibson believes a win for Doctor Dino in the Dubai Sheema Classic would see him lay a claim to being crowned the best international racehorse in the world.

Yellowstone was out of luck in the Man o’ War Stakes at Belmont Park on Saturday evening as Doctor Dino opened his Grade One account.