Derby Sale 2023: Doctor Dino half-brother to Jonbon and Douvan

The Derby Sale provides purchasers a catalogue unparalleled in quality and amongst the horses featured in this year's sale is a Doctor Dino half-brother to Douvan and Derby Sale graduate and multiple Grade 1 winner Jonbon. Robert Hall chats to Kieran and Cathal Mariga of Coolmara Stables in Co.Cork.