Constitution River heads Aidan O’Brien’s Derby contenders but Maltese Cross is one to watch, while Legacy Link has pedigree for the Oaks1. Constitution River Timeform rating: 124p. Odds: 6-1. Trainer: Aidan O’Brien. Pedigree: Wootton Bassett x Chuppy (Le Havre) There’s no doubt about the “wow” performance of trials season: tactical speed, balance and a finishing kick, Constitution River had it all in a seven-length rout for the Dee Stakes at Chester, with a big timefigure to back up the form. But when was life ever that simple? An entry over a mile at Royal Ascot hints at stamina doubts, and current thinking seems to be leaning towards the 10-furlong French Derby on 31 May. Continue reading...