The Aga Khan Studs has one of Europe's leading Classic prospects for this season in the unbeaten Group 1 winner Tahiyra (Ire), whose sire Siyouni (Fr), unsurprisingly, has a stellar lists of mares booked to visit him in 2023. These include Tahiyra's half-sister Tarnawa (Ire) (Shamardal), who was also trained by Dermot Weld and won three Group 1 races among her nine career victories, as well as finishing runner-up in the Prix de l'Arc de Triomphe. An equally starry name features on the list as the brilliant, unbeaten Zarkava (Fr)...