Declaration Of War may make his mark for Ballydoyle at the JLT Lockinge Stakes in Newbury Yet, despite the unknown factors, there is a confidence behind him at Ballydoyle that makes him a colt deserving of huge respect, even against Cityscape, a Dubai Duty Free winner at Meydan, and Godolphin's Farhh, who was chasing Frankel home in his races last year. Both Cityscape and Farhh come to this race for their first outing of the season, but Declaration Of War has already had a run under the belt, winning comfortably in listed company at Sandown Park, and that may make the difference. It is a high-quality field, in which the last-start Ascot winner Fencing and Beauty Parlour, a French 1,000 Guineas winner, also have solid claims. The star of Friday's final day of the York May meeting was Glen's Diamond, who scraped home by a nose in the QIPCO Yorkshire Cup in the closest finish of the week. It was a deserved win for the Richard Fahey-trained stayer, who had been runner-up in the race last year. He just held off a late thrust from the Francois Doumen-trained Top Trip in a bob of heads as they hit the line. Glen's Diamond is owned by Doncaster engineer Steven Clayton and his wife Glen, who were adamant the five-year-old was not for sale. "After he won the Dee Stakes two years ago, we had offers from Australia, and from Hong Kong, and the jumping boys were showing an interest," Steven Clayton recalled. But Glen says he is not for sale. We like to keep them. He needs good ground. When it started raining last night I felt like jumping out of my hotel window. I was crying. "We bought him for the John Smith's Magnet Cup [over a mile and a quarter] but he's become a better stayer as he's got older," Clayton explained. The gelding received a 66-1 quote from Paddy Power for the Emirates Melbourne Cup on Nov 5. "We'd love to take him down there to Australia," he added.