O`Brien pair head Nell Gwyn entries A total of 17 fillies have been entered in the Shadwell Stud Nell Gwyn Stakes - the first major trial for the Sagitta 1000 Guineas - on the opening day of the Craven Meeting at Newmarket on Tuesday.Aidan O`Brien has put Lahinch and Sophisticat in the seven-furlong Group Three contest which has not fallen to the Newmarket Classic winner since Oh So Sharp landed both races in 1985.Henry Cecil has entered his May Hill Stakes winner Half Glance, who is rated a 25-1 chance by Coral for the May 5th contest.Also on 25-1 with the English firm is the Marcus Tregoning-trained Misterah and the Lambourn trainer has said that the Rockfel Stakes third is on target to reappear in the Nell Gwyn.Misterah won a Listed race at Ayr last season when she beat another of Tuesday`s entries, Good Girl, by a head.The Tim Easterby-trained Good Girl went on to finish a creditable third behind Queen`s Logic and would be attempting seven furlongs for the first time at Newmarket.Manton trainer John Gosden has entered Sundari, the daughter of Danehill, having run well when third to Silent Honor in the Cherry Hinton Stakes on Newmarket`s July course.