Nat Barnett Bloodstock bought three yearlings during the second session of the Arqana Autumn Sale on Tuesday, including the €160,000 top lot, a son of notable jumps stallion Doctor Dino. Sold as lot 540, the AQPS son of Diane De Grugy (Ballingarry) is a full-brother to dual Grade 1-winning hurdler Jade De Grugy. Aready named Oteuil De Grugy, the Windermere Stud-consigned colt is from the same family as top-notch AQPS chaser Sire De Grugy (My Risk). "For me, he was the horse of the sale," said Barnett. "I've bought him...