Marcus Tregoning has warned followers of his Vodafone Derby winner Sir Percy to hold their bets on the colt for the Irish equivalent on July 2.

LEADING bookmakers are fearing the ‘Fallon factor’ ahead of Saturday’s Vodafone Derby at Epsom.

ANTE-POST activity on the Vodafone Derby hotted up with Visindar cementing his claims with an emphatic victory in the Group Two Prix Greffulhe at Saint-Cloud while some bookmakers have removed Hala Bek and Sir Percy from their lists.

George Washington has hardened at the head of the market as he bids to justify favouritism and give Aidan O’Brien back-to-back wins in the Stan James 2000 Guineas at Newmarket on Saturday.

Mark Johnston is toying with the idea of sending Nakheel straight for the Stan James 2000 Guineas without the benefit of a prep run.