ParisLongchamp's Arc card got underway in style as Ballydoyle's Diamond Necklace swooped to provide St Mark's Basilica with his first Group 1 winner in the Qatar Prix Marcel Boussac. Sent off the favourite for the first of the fixture's six Breeders' Cup "Win And You're In" races, the Listed Ingabelle Stakes winner who is a TDN Rising Star, presented by Hagyard, was always comfortable and when asked to mow down the Wertheimers' unbeaten Green Spirit (Kingman) did so without any need for the whip. "She's amazing," commented a smitten Christophe...