CHANGINGOFTHEGUARD can give Aidan O'Brien a perfect 10th victory in the Boodles Chester Vase Stakes (Colts & Geldings) (3.40pm) and book his ticket to Epsom on the opening day of the Chester May Festival on Wednesday.
The trials for next month's Cazoo Derby are under way and the Group Three feature on the Roodee sees another big clash between the big two racing operations, Coolmore and Godolphin.
Godolphin and trainer Charlie Appleby struck first with Coreobus's fine victory over stable-mate Native Trial in the QIPCO 2,000 Guineas at Newmarket on Saturday, with O'Brien's Luxembourg running a fine Derby trial in third. He is the current 2-1 favourite with most firms for Epsom glory on June 4.
