Sandown's Listed Heron S. on Thursday offered some Royal Ascot clues, with Shadwell's Mostahdaf (Ire) (Frankel {GB}) maintaining his unbeaten record on his first try on turf for the John and Thady Gosden stable. Having scored on debut on Newcastle's Tapeta Mar. 16 and over this mile trip on Kempton's Polytrack Apr. 5, the half-brother to last year's G1 Sun Chariot S., G1 Falmouth S. and G2 Duke of Cambridge S. heroine Nazeef (GB) (Invincible Spirit {Ire}) was restrained in rear early by Jim Crowley having been drawn widest of...