DONCASTER, England--Clive Cox might not have a degree in mechanical engineering, but it's fair to say that there have been few better trainers than him over the years when it comes to masterminding the career trajectory of a 'Donny Rocket'. Think Harry Angel (Ire), the July Cup and Sprint Cup scorer bought by Cox for just £44,000 at the 2015 edition of the Goffs UK Doncaster Premier Yearling Sale, or the Prix de l'Abbaye heroine Gilt Edge Girl (GB) (Monsieur Bond {Ire}), his very first Group 1 winner who he'd...