Lightening Quick has been supplemented for the Shadwell Rockfel Stakes at Newmarket on Friday.
By Frankel out of Cheveley Park winner Lightening Pearl, the Ger Lyons-trained filly made a winning debut on Irish Champions Weekend.
She is one of 15 possibles and could be joined on the trip from Ireland by Dermot Weld's Chiara Luna and Aidan O'Brien's Butterscotch, Ballet Shoes and September.
Jeremy Noseda's Take Me With You, the Mark Johnston-trained Nyaleti and Roger Charlton's Gavota are others of note.
Sir Michael Stoute's Mustashry is one of 15 potential runners in Friday's Shadwell Joel Stakes at Newmarket.
Impressive in the Strensall Stakes at York last time out, he appears to be progressing nicely.
Aidan O'Brien has six possibles, including Sir John Lavery and Music Box.
Clive Cox's Zonderland, Andrew Balding's Beat The Bank and Ruth Carr's popular Sovereign Debt are also in the mix.
South African challenger Whisky Baron adds an extra international element to the mix.
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